Caterham 7

Caterham 7
Overview
Manufacturer Caterham Cars
Production 1973-present
Body and chassis
Class Sports car
Body style open 2 seat
Powertrain
Transmission 5-speed manual
6-speed manual
6-speed sequential manual
Dimensions
Curb weight 545 kg (1,202 lb)
Chronology
Predecessor Lotus Seven

The Caterham 7 (or Caterham Seven) is a super-lightweight sports car produced by Caterham Cars in the United Kingdom. It is based on the Lotus Seven, a lightweight sports car sold in kit and factory-built form by Lotus Cars, from 1957 to 1972.

After Lotus ended production of the Lotus Seven, Caterham bought the rights to the design, and today make both kits and fully assembled cars.[1] The modern Caterham Seven is based on the Series 3 Lotus Seven, though developed to the point that no part is the same as on the original Lotus.

Various other manufacturers offer a sports car in a similar basic configuration, but Caterham owns various legal rights to the Lotus Seven design and name. The company has taken legal action in the past in order to protect those rights, although in South Africa, it lost its case against Birkin on the basis that it never obtained the claimed rights from Lotus.[2]

History

Colin Chapman had been a Royal Air Force pilot, studied structural engineering and went on to become one of the great innovators in motorsports design founded Lotus Engineering Ltd. His vision of light, powerful cars and performance suspensions guided much of his development work with the basic design philosophy of, "Simplify, then add lightness".[3] His Lotus 7 had its debut at the 1957 Earl’s Court Motor Show in London. They were priced at £1,036 including purchase tax but it cost only £536 in kit form as no purchase tax was required. It weighed only 725 lb (329 kg). Fast and responsive, the Lotus 7 was one of Chapman’s masterworks, an advanced machine that surpassed the earlier Lotus 6 as a vehicle that could perform well on the track and be driven legally on the road.

In 1973, Lotus decided to shed its kit car image and concentrate on limited series motor racing cars and up-market sports cars. As part of this plan, it sold the rights to the Seven to its only remaining agents, Caterham Cars in England and Steel Brothers Limited in New Zealand. At the time the current production car was the Series 4, but when Caterham ran out of the Lotus Series 4 kits in 1974 they introduced its own version of the Series 3, as the Caterham Seven. The modern day Roadsports and Superlights (in "narrow-bodied chassis" form) are the direct descendants of this car and therefore of the original Lotus 7.

Chassis and suspension

As with the Lotus Six before it, the original Lotus Seven used an extremely light space-frame chassis with stressed aluminium body panels. Although the chassis has had numerous modifications to strengthen it and accommodate the various engine and suspension setups (and to try to find more cockpit space for the occupants), this basic formula has remained essentially the same throughout the Seven's life (with the exception of the Series 4, which used steel for the cockpit and engine bay and glassfibre for the bodywork). Early cars used a live rear axle, initially from various Fords, later from the Morris Ital. De Dion rear suspension was introduced in the mid-1980s and both geometries were on offer until 2002 when the live-axle option was phased out. The modern Superlight employs adjustable double-wishbone suspension with front anti-roll bar and a de-dion rear axle, located by an A-frame and Watt's linkage.

The Caterham 7 range was based exclusively on this Series 3 chassis until 2000, when the SV (Series V, or Special Vehicle) chassis was released, aimed at accommodating the increasing number of prospective buyers who could not fit comfortably in the Series 3 cockpit. The SV chassis offers an extra 110 mm (4.3 in) of width across the cockpit, at a cost of 25 kg (55 lb) of extra weight, and both chassis sizes are available today in Roadsport and Superlight variants.[4] The SV chassis subsequently provided the basic dimensions for the Caterham CSR. The suspension was completely redesigned, bringing the front suspension inboard, using pushrods, and replacing the De-Dion rear axle with a lighter, fully independent, double-wishbone layout with new coil/damper units. Additional chassis modifications resulted in a 25% increase in torsional stiffness.[5] The CSR was released in October 2004, with a Cosworth Duratec engine and is currently available from the factory in either 200 bhp (150 kW) or 260 bhp (194 kW) form.

Engines

Early cars used the Lotus TwinCam engine (subsequently manufactured by Vegantune), followed by Ford cross flow engines.[6] The first Cosworth BDR engines appeared around 1983, in 1600 cc 140 bhp (104 kW) form, followed by 1700 cc 150 bhp (112 kW) versions three years later. By 1990 the top of the range engine had become the 2 litre Vauxhall HPC, as fitted to the Vauxhall Calibra, putting out 165—175 bhp. A few HPC "Evolution" models were built with engines developed by Swindon Race Engines producing between 218 bhp (163 kW) and 235 bhp (175 kW). In 1993 Caterham created the JPE special edition (named for Formula 1 driver Jonathan Palmer) by using a 2-litre Vauxhall Touring Car engine, putting out around 250 bhp (186 kW) and reducing weight to around 530 kg (1,168 lb) by such measures as removing the windscreen in favour of an aeroscreen. The JPE was quoted at 0-60 mph times of around 3.5 seconds and, with Jonathan Palmer at the wheel, set a 0-100 mph-0 record of 12.6 seconds. Around 1997 the cross flow range was replaced by 8v and 16v Vauxhall units which, in various guises lived on until the end of the VX-powered Caterham Classic, in 2002.

The Rover K-series made its appearance in 1991, initially as the 1.4 litre engine from the Metro GTi. This engine became the backbone of the range for the next 15 years. The 1.6 litre k-series appeared in 1996 and the 1.8 litre a year later. 1996 also saw the addition of the 'Superlight' range, a range that successfully focussed initially on reducing weight and subsequently on bespoke tuning of the k-series to ever-higher outputs. Weight was saved by removing the spare wheel (and carrier), carpets, heater and often the windscreen (replaced with an aeroscreen), hood and doors. Lightweight "Tillet" GRP seats were usually fitted along with carbon-fibre front wings and nosecone (note however that items such as heaters and windscreens could still be specified by the Superlight customer if they so wanted). Wide-track suspension was added to the superlight, increasing the track at the front to match that at the back. The later Superlight-R offered the dry-sumped VHPD (Very High Performance Derivative) variant on the 1.8 litre k-series. Output was now up to around 180 bhp (134 kW), in a car that now weighed as little as 490 kg (1,080 lb). Three years later Caterham took the same concept to a new level and created the iconic Superlight R500, still based on the Rover 1.8 litre k-series but now tuned (by Minister Racing Engines) to around 230 bhp (172 kW) at 8,600 rpm in a car weighing just 460 kg (1,014 lb). The R500 was initially available in kit-form, but quickly became a factory-build only item. Quoted performance figures still make impressive reading; 0-100 mph in 8.2 seconds (although EVO magazine quotes 8.8 seconds[7]). Perhaps unsurprisingly, such a stressed engine required frequent "refreshing" in order to keep it on the road and a series of engine revisions was undertaken throughout the R500's life in order to increase reliability. This culminated in 2004 with perhaps the most extreme production Caterham of all; the R500 EVO was bored out by Minister to 1,998 cc and delivered 250 bhp (186 kW). At £42,000, the R500 EVO was hardly a sales success - it is widely believed that just three examples were sold. It did however succeed in setting a series of performance car benchmarks several of which last to this day; the 0-100 mph-0 record was set at 10.73 seconds (in second place was a Ferrari Enzo costing ten times as much) and, until the end of 2006 it remained the fastest production car timed by EVO magazine around the Bedford Autodrome West Circuit, ahead of a Porsche Carrera GT. Only the Radical SR3 1300 has subsequently posted a faster time than the R500 EVO.[7]

After the demise of Rover and Powertrain, Caterham started the process of phasing out the Rover k-series engine and replacing them with Ford engines; the Sigma engine for Roadsports and the 2.0 litre and 2.3 litre Duratec engines for the more powerful Superlight and CSR ranges. Although Caterham's website suggests that there are a few models (such as the Superlight R300) still available with a k-series engine, this migration is largely complete.

Caterham have had something of a tentative relationship with the installation of motorbike engines into their cars. Since 2000, a Canadian firm has been selling Caterham 7 models using the GSXR1300 engine used in the Suzuki Hayabusa. It reportedly does 0-62 in under 3 seconds. In 2000 the Honda CBR1100 engine was installed into a 430 kg (948 lb) superlight chassis to create the Caterham Blackbird, delivering 170 bhp (127 kW) at 10,750 rpm (although just 92 lb·ft (125 N·m) of maximum torque). The Blackbird offered near R500 performance for rather less money (Top Gear quote 0-60 of 3.7 seconds and a top speed of 143 mph (230 km/h) at a new cost of £25,750).[8] In 2001 a Honda Fireblade engine was offered in a live-axle chassis, via James Whiting of Ashford, Middlesex. Quoted power was 128 bhp (95 kW) at 10,500 rpm. Both of these models have ceased production. There has also been at least one installation of the RST-V8, created by Moto Power; a 2-litre, 40 valve 340 bhp (254 kW) V8 made from a pair of motorcycle engines joined at the crank. An early, pre-production review of the car/engine combination exists on the EVO website.[9] In Feb 2008, the "Caterham 7 Levante" was announced, featuring a supercharged version the RST-V8, offering over 500 bhp (370 kW), installed in a modified Caterham chassis, with bespoke bodywork. Made by RS Performance (described in the press release as "Caterham's new performance arm"), the Levante is intended to be a limited run of 8 cars at a cost of £115,000 each.[10]

Racing

Caterham 7 on track at Spa-Francorchamps

The Lotus 7 was conceived by Chapman as a car to be raced. Whilst still a prototype, in September 1957, it was raced at the Brighton Speed Trials[11] and by the end of 1958 Graham Hill was winning races with the Coventry Climax-engined 'Super Seven'.[12] The car has had a strong racing history throughout its life under both Lotus and Caterham stewardship. Amongst the marque's more famous races was victory in the Nelson Ledges 24-hour race in Ohio when, against a field including works teams from Honda and Mazda, a four-man team from Caterham (including both Jez Coates and Robert Nearn) won by seven laps (after 990 laps) in a modified Vauxhall HPC.

After dominating open class races for decades, Caterham Super 7 Racing, a one-make championship for Caterhams, began in 1986. Caterham 7 races have since expanded to include club and competitive races in the United Kingdom, continental Europe, Canada, the United States and Asia. In 1995 the Caterham Academy, a novices-only format, was introduced in the UK. For £17,995 (2009 price), entrants get a modified Roadsport kit (although a factory-built option is available for extra cost) with a sealed 120 bhp (89 kW) engine and 5-speed gearbox. Having completed the ARDS license qualification, the season then consists of four sprints followed by four circuit races. The Academy is designed as the first step in a well-established chain of Caterham race formats, such as the Caterham Motorsport Ladder[13] which consists of Roadsports B then Roadsports A, R300, Superlight and Eurocup, or the Caterham Graduates Racing Club.[14]

The car was banned from racing in the USA in the 1960s, as being "Too fast to race" and again in the UK in the 1970s for the same reasons, which prompted Caterham Cars boss Graham Nearn to produce 'T' shirts with "Caterham Seven, the car that's Too Fast to Race...". Both bans were later lifted. In 2002 an R400 won its class (and came 11th overall out of 200 starters) at the Nürburgring 24-hour race by 10 laps, ahead of competition that included Porsche and BMW racecars, leading, once again, to a ban on entry in subsequent years.[15]

Current range

The existing range provided by Caterham Cars comprises a mixture of chassis types (the traditional narrow-bodied 'Series 3' chassis, the wider SV chassis and the CSR chassis), engines (Ford Duratec engines for the more powerful variants, Ford Sigma engines for the lower-powered models) and models (Roadsport, Superlight, CSR, in ascending order of price). All are available either factory-built or as a self-build kit.

Until mid-2013 the factory had offered options around the Rover K-series engine, including the entry level "Classic" with a 1.4 litre, capable of 0-60 in 6.5 seconds and a top speed of 110 mph (180 km/h). But with the cessation of the engines production and new EU emissions regulations, the end of the engines production also removed the "Classic" from the company's model line-up.

160 / 165

The 160 and 165 are the current entry level offering from Caterham. It is only available with the S3 chassis, doors and windscreen as standard. There is a list of optional extras such as carpets, spare wheel, weather package and heater. It also powered by Suzuki 660cc kei car engine producing 80 horsepower. Price starts at £14,999.

Roadsport

The Roadsport is now the second-level offering from Caterham. It is available in both S3 and SV chassis sizes, and is more or less the former Classic with a more powerful engine and a few more extras as standard: heater; hood; spare wheel/carrier; carpets. The engine options are based around the Ford Sigma 1.6 (125 bhp, 140 bhp) and the Ford Duratec 2.0 (175 bhp). Suspension is double-wishbone and anti-roll bar at the front; de dion axle located by an A-frame at the rear, where the old Classic specification had a live-axle set-up.

Superlight

The Superlight is available in both S3 and SV chassis sizes. The list of standard equipment reflects the Superlight's bias to track work: wide-track front suspension, 6 speed gearbox, carbon fibre dashboard and front wings, GRP aeroscreen and seats, racing harness, removable steering wheel. Quoted weight for the Superlight is about 50 kg (110 lb) less than the Roadsport, due in part to the lack of a spare wheel and carrier. All Superlight cars use the 2 litre Ford Duratec engine in differing states of tune; the R400 with 210 bhp (160 kW) and R500 with 263 bhp (196 kW), Caterham used to manufacture an R300 using the same engine at 175 bhp, but this car has effectively now become the Supersport R. With the launch of the R500 (April 2008), Caterham made available the options of a sequential gearbox and launch control. Quoted performance for the R500 is 0-60 in 2.88 seconds and a top speed of 150 mph (240 km/h). In October 2012 a supercharged model ('R600') for a race-series above the R300-class was released, including slick tyres and a sequential gearbox.[16]

At the beginning of December 2008, the R500 was featured on the popular BBC television show Top Gear, putting in a timed lap of the Top Gear circuit of 1 minute 17.9 seconds.[17][18] This is, to date, the thirteenth fastest official lap timed by the show, faster than, amongst others, the Bugatti Veyron. This feat was considered even more impressive due to the coldness of the conditions which made it difficult for the test driver (The Stig) to get heat into the tyres. Shortly afterwards, on 14 December show, Top Gear made the R500 its '2008 Car of the Year'.

CSR

The CSR represents the top of the range and in some respects can be considered a separate model. It has its own chassis, suspension and interior and is available with either 2 litre (200 bhp) or 2.3 litre (260 bhp) Ford Cosworth Duratec engines. Quoted performance for the CSR260 is 0-60 in 3.1 seconds and a top speed of 155 mph (249 km/h). There is no home-build option; the factory supplies the finished car.

In 2006, Caterham introduced the CSR Superlight. Based on the CSR260, this model adds a ‘Superlight’ lightweight specification to the CSR, further extending the CSR260’s already epic performance envelope. The 2.3 litre Cosworth-powered Caterham CSR260 Superlight brings all the performance credentials associated with its stablemate; performance is quoted as a 0-60 mph time of 3.1 seconds and a top speed of 155 mph (249 km/h). The Superlight swaps the windscreen, carpet, heater and weather gear on the standard car for a limited slip differential and a quicker steering rack. There is a 25 kilo weight reduction over the standard CSR260, this model variant also adds distinctive Superlight styling to the exterior, including a wind deflector, a carbon fibre dashboard and wings, a black powder coated cockpit and a quick-release MOMO steering wheel. Of particular note are ‘Dynamic Suspensions’ Damper units developed by specialist Multimatic for the car. The damper units lend the already capable CSR a further edge in terms of handling and cornering performance. It features the same 2.3 litre (260 bhp) engine as the CSR260, but weighs only 550 kg (1,213 lb) and has a power-to-weight ratio of 472 bhp (352 kW)-per-tonne.

50th Anniversary editions

Caterham have celebrated the 50th year of production with a couple of special edition "50th Anniversary" paint options. In addition, as part of the 50th anniversary celebrations in early June 2007, they showcased the X330 concept car. Based on the CSR, the X330 employs a supercharged version of the Duratec engine to produce 330 bhp (246 kW). The use of lighter-gauge steel and of carbon fibre instead of GRP further improves the power-to-weight ratio. Caterham say that they have no plans to put this car into production.[19]

Model history

Caterham has a number of popular model lines—such as the Roadsport, Supersport, and Superlight—that are occasionally re-introduced with chassis upgrades or changes in the engine options available.[20]

7 variants since Caterham took over production from Lotus[20]
Model Years Production Engine Notes
7 Series 4 1973 - 1974 38 Ford Kent crossflow
or
Lotus-Ford Twin Cam 		Carryover from Lotus production; ultimately discontinued to due manufacturing logistics issues
7 Series 3 Twin Cam 1974 - 1983 313 Lotus-Ford Twin Cam
7 Series 3 1300GT 1975 - 4 Ford Kent crossflow
7 Series 3 1600GT 1975 - 1992 338 Ford Kent crossflow
1600 Sprint 1980 - 1992 212 Ford Kent crossflow (Caterham tune)
VTA 1981 - 1985 41 Vegantune Lotus-Ford Twin Cam
Silver Jubilee 1981 - 1983 8 Ford Kent crossflow (Caterham tune) Silver paint (excl. one BRG car) with colored striping on bonnet and front wings
Avon A 1982 - 1983 2 Vegantune Lotus-Ford Twin Cam Hi-spec features such as re-trimmed two-tone interior and pepperpot alloy wheels
1700 Supersprint 1982 - 440 Ford Kent 1.7L (Caterham tune)
1600 BDR 1983 - 1992 149 Cosworth BDR 1600
1700 BDR 1986 - 1999 269 Cosworth BDR 1700
HPC 1700 1986 - 1995 62 Cosworth BDR 1700 Purchased required taking performance driving course. Car was fitted with limited slip differential.
CVH 1986 - 1991 91 Ford CVH For Swiss export only
Prisoner 1989 - 47 as of 2013 (Multiple available) Trim package to commemorate The Prisoner television series
HPC VX and VXI 1990 - 1999 337 as of 1995 Caterham-tuned Vauxhall VX Buyers under age 25 were required to complete a performance driving course before taking delivery.
35th Anniversary 1992 - 1994 (Multiple available) Trim and equipment package to commemorate production of the 7. Lotus green/yellow paint. Genuine 35th Anniversary cars will have a dashboard plaque.
7 GTS 1992 ~40 Ford Kent crossflow Intended as a return to the basics of the 7, with live axle and four-speed gearbox
7 Classic 1992 - 1998 Ford Kent crossflow Even more minimal than the GTS, the Classic was intended as low-priced entry-level model.
1.4 K-Series 1991 - 1996 Rover K-Series
1.4 K-Series Supersport 1993 - 1997 Rover K-Series
Road-Sport 1996 30 Rover K-Series Built with special trim, weight-reducing components, and the Caterham six-speed gearbox
JPE 1992 - 2001 53 Vauxhall twin-cam tuned by Swindon Racing Engines Very minimal and lightweight and with engine similar to that used in British Touring Car Championship. In popular culture, this model plays a role as Sōichi Sugano's car in the anime series éX-Driver by Kōsuke Fujishima.
S7 Competition R 1995 - 2001 25 Turbocharged Vauxhall/Opel 2.0L For Swiss market
1.6 K-Series 1996 - 2012 Rover K-Series Introduced chassis modifications that improved rigidity and ride quality
40th Anniversary 1996 - 1998 67 Rover K-Series or Vauxhall 2.0L Special trim including two-tone red-and-silver paint scheme
Superlight 1.6 1996 - 2004 196 Rover K-Series Constructed with lightweight carbon fiber components
Superlight R 1997 - 2002 127 Rover K-Series Very High Performance Derivative (VHPD) Equipped with numerous racing-inspired features
Classic VX 1600 1997 - 2002 224 Vauxhall 1.6L Inexpensive entry-level model with live rear axle
1.8 K-Series 1997 - 2006 Rover K-Series
1.8 K-Series VVC 1997 - 2006 Rover K-Series Employed engine with Rover's Variable Valve Control
Silverstone 1998 - 1999 3 Rover K-Series Aluminum bodywork
Classic VX Supersprint 1998 - 2002 9 Vauxhall 1800 (Caterham tune)
Clubsport 1998 - 1999 5 Rover K-Series Intended for motorsport (with roll-over protection and fire suppression features)
Superlight R500 1999 - 2005 125 Rover K-Series (Caterham tune)
Zetec 1998 - 2008 ~250 Ford Zetec Built for the United States market
Autosport 50th Anniversary 1999 - 2001 9 Rover K-Series Painted red with a gold band around the nose, this special edition was built to commemorate Autosport magazine's 50th year of publication
Blackbird 2000 - 2001 5 Honda Blackbird 1.1L
SV 2000 - 1,480 (as of December 2012) (Multiple available) First of the models with a wider and longer chassis for more interior space
GSX 1300R Hayabusa 2000 - 14 (as of February 2013) Suzuki Hayabusa 1.3L For Canadian market. Built with sequential gearbox. Also available with Hayabusa 'R' Type engine, or with Rotrex supercharging
Fireblade 2001 - 2004 23 Honda Fireblade 919cc Sequential gearbox, world record : fastest car going backwards (101 mph), rear live-axle, handrake lever under dashboard
Beaulieu 2001 - 2003 51 Vauxhall 1.6L Entry-level model with live rear axle, rear drum brakes, and paint scheme to recall the Lotus 7
Superlight R300 2002 - 2006 ~125 MG XPower Rover K-Series 1.8L Intended as a less hard-core alternative to the Superlight R500
Superlight R400 XPower 2002 - 2005 68 MG XPower Rover K-Series 1.8L Rebranded Superlight R with engine and other modifications
Superlight R500 evolution 2004 4 Rover K-Series Superlight R500 with engine developed further by Minister Racing Engines and PTP (Powertrain Products)
1.4 K-Series Classic 2002 - 2012 Rover K-Series
SV30 2003 - 2004 4 Rover K-Series Built to commemorate the 30th year of the Caterham 7. All finished in Boston Green paint and fitted with 1.6L K-Series engine.
Tracksport 2003 2 MG XPower Rover K-Series Intended for track use, and, like the SV30, was built to commemorate the 30th anniversay of the Caterham 7
RST-V8 2004 - 2008 4 Motopower RST-V8 Not an official Caterham offering; powered by the small-displacement V8 designed by Russell Savory and derived from Yamaha motorbike engines
CSR200 2005 - 2011 Cosworth-Ford Duratec Used a developed SV chassis, with increased rigidity and pushrod front suspension
CSR260 2005 - Cosworth-Ford Duratec Similar specification as the CSR200, but with further engine development to produce 260 hp
CSR260 Superlight 2006 - 2011 Cosworth-Ford Duratec Lightened, minimalist version of the CSR260
Superlight 1.8 2005 - 2006 ~5 MG XPower Rover K-Series
Superlight R400 2.0 2006 - 135 (as of December 2012) Caterham-Rover K-Series A relaunch of the Superlight R400 with Duratec (rather than K-Series) power
Roadsport Sigma 2006 - 1,260 (as of December 2012) Ford Sigma Marked the major transition from the Rover K-Series engine to the Ford Sigma/Duratec line
Axon 2R / Eco-M 2006 - 2 Rover K-Series High-fuel-economy prototype developed by Axon Automotive
Superlight 120 / 150 2006 - Ford Sigma First of the 'Superlight' cars to be fitted with Ford Sigma engines
X330 2007 1 Cosworth-Ford Duratec One-off built to celebrate Caterham's 50th anniversay. Fitted with Rotrex C30-94 supercharger.
50th Anniversary 2007 50 or fewer (Multiple available) Cosmetic changes only, including two-tone exterior color schemes and a numbered plaque on the dashboard
RS Levante 2008 9 Motopower RST-V8 Available in either 400 hp normally-aspirated or 550 hp supercharged form
CDX 2008 - 2011 13 Rover K-Series Replica of the "Caterham Driving Experience" track-day cars
Superlight R300 2008 - 45 (in UK market) Caterham Powertrain Duratec
Superlight R500 2008 - 100+ (as of December 2012) Caterham Powertrain Duratec
Roadsport 175 2008 - Caterham Powertrain Duratec
CSR175 2009 - 75 (as of December 2012) Caterham Powertrain Duratec Lower cost export model for Europe and Japan
Lambretta 2010 1 Ford Sigma Trimmed and painted in Union Jack colors, in partnership with Lambretta Clothing and Oxted Trimming
Roadsport 125 Monaco 2010 - 2011 25 Ford Sigma Comestic package for the Roadsport, inspired by the Flag of Monaco
Team Lotus 2011 - 37 (as of December 2012) (Multiple available) Lotus green-and-yellow color scheme
Supersport 2011 - Caterham-Ford Sigma
Supersport R 2012 - Caterham Powertrain Duratec
Model Years Production Engine Notes

Caterham 7 literature

The Caterham 7 has spawned many books, test reports and articles, many of which are still in print.

Lotus & Caterham Sevens Gold Portfolio, 1957-1989

Edited by R.M. Clarke, Brooklands Books, 1989, ISBN 1-85520-000-7, Test reports and articles from magazines around the world.

Lotus & Caterham Seven Gold Portfolio, 1974-95

edited by R.M. Clarke, Brooklands Books, 1996, ISBN 978-1-85520-330-3, Test reports and articles from magazines around the world

The Legend of the Lotus Seven

Dennis Ortenberger, Osprey, 1981, ISBN 0-85045-411-5 (Reissued in 1999 by Mercian manuals.)

The Lotus and Caterham Sevens, A Collector’s Guide

Jeremy Coulter, Motor Racing Publications Ltd., 1986, ISBN 0-947981-06-3

Lotus Seven: Restoration, Preparation, Maintenance

by Tony Weale, Osprey Automotive, 1991, ISBN 1-85532-153-X, Includes Caterham Sevens up to 1990.

by Chris Rees, Motorbooks International, 1997, ISBN 978-0-947981-97-6

by Peter Egan, Brooklands Books and Road & Track,

Peter Egan's books are collections of his Road & Track column Side Glances. Many feature his Lotus Sevens but there is also information on Caterham Sevens.

Lotus and Caterham Seven: Racers for the Road

by John Tipler, Crowood Press, 2005, ISBN 978-1-86126-754-2

The Magnificent 7: The enthusiasts' guide to all models of Lotus and Caterham Seven

by Chris Rees, Haynes Publishing, Second edition 2007, ISBN 978-1-84425-410-1

Why build a Seven? Putting a Sportscar on the Road, a personal record.

by Michael Eddenden, 2010, Published by lulu.com, ISBN 978-0-557-54398-4

The building of a Caterham 7 from a Club perspective, it includes much on Lotus and Caterham Seven owners.

References

  1. ↑
  2. ↑ "Caterham Car Sales and Coachworks Ltd. v Birkin Cars (Pty) Ltd. and Another"
  3. ↑ "About Us>Philosophy". Group Lotus PLC. Retrieved 23 July 2013.
  4. ↑ Archived 5 September 2008 at the Wayback Machine
  5. ↑ "Caterham Sevens, from conception to CSR", by Chris Rees
  6. ↑ This paragraph largely draws from Chris Rees' book "Caterham Sevens from conception to CSR", published by MRP, ISBN 1-899870-61-X,
  7. 1 2 EVO Magazine, Issue 100, January 2007. Published by Dennis Publishing Limited
  8. ↑ "Caterham Super 7 expert car review verdict - BBC Top Gear". Topgear.com. Retrieved 2011-11-26.
  9. ↑ "Caterham | evo Car Reviews | Car Reviews". evo. 2004-09-01. Retrieved 2011-11-26.
  10. ↑ "RS Performance". RS Performance. Retrieved 2011-11-26.
  11. ↑ Caterham Sevens, from conception to CSR by Chris Rees
  12. ↑ The Lotus Book, by William Taylor, Published by Coterie Press. ISBN 1-902351-13-4
  13. ↑ "All the links you need". Caterham.co.uk.com. Retrieved 2011-11-26.
  14. ↑ "Caterham Graduates Racing Club". Graduates.org.uk. Retrieved 2010-12-24.
  15. ↑ "24h Rennen Tickets und mehr - 40. ADAC Zurich 24h-Rennen". Adac.24h-rennen.de. Retrieved 2011-11-26.
  16. ↑
  17. ↑ "Caterham bids farewell to the Superlight R500". Autoblog.com.
  18. ↑ Archived 2 February 2014 at the Wayback Machine
  19. ↑ 1 June 2007 (2007-06-01). "Caterham's birthday concept". Autocar.co.uk. Retrieved 2011-11-26.
  20. 1 2 Rees, Chris (August 2013). The Magnificent 7. Haynes Publishing. ISBN 978-0-85733-391-9.>

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