Lotus 99T

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Lotus 99T
Lotus 99T front-right 2010 Pavilion Pit Stop.jpg
Category Formula One
Constructor Team Lotus
Designer(s) Gérard Ducarouge
Martin Ogilvie
Predecessor 98T
Successor 100T
Technical specifications[1]
Chassis Carbon fibre and Kevlar monocoque
Suspension (front) Lotus Active, double wishbones, coil springs
Suspension (rear) Lotus Active, double wishbones, coil springs
Axle track Front: 1,791 mm (70.5 in)
Rear: 1,641 mm (64.6 in)
Wheelbase 2,730 mm (107 in)
Engine Honda RA166-E, 1,494 cc (91.2 cu in), 80° V6, turbo (4.0 bar limited), mid-engine, longitudinally mounted
Transmission Lotus-Hewland 6-Speed manual
Weight 540 kg (1,190 lb)
Fuel Elf
Tyres Goodyear
Competition history
Notable entrants Camel Team Lotus Honda
Notable drivers 11. Japan Satoru Nakajima
12. Brazil Ayrton Senna
Debut 1987 Brazilian Grand Prix
Races Wins Poles Fastest laps
16 2 1 3
Constructors' Championships 0
Drivers' Championships 0

The Lotus 99T was a Formula One car designed by Gérard Ducarouge for Lotus for use in the 1987 season. After Renault pulled out of F1 at the end of 1986, Lotus signed a deal with Honda for use of their hugely powerful turbocharged 1.5 Litre engine, although due to Honda's already existing deal with the Williams team allowing them exclusive use of the 1987 spec Honda RA167-E, Lotus had to make do with the Honda RA166-E spec engine from 1986. As part of the deal, Lotus agreed to sign Honda's test driver Satoru Nakajima as team mate to the mercurial Ayrton Senna. Nakajima, who many felt was only in F1 because of his nationality and because of Honda, brought little to the team other than Honda.

Lotus had also lost long time major sponsor John Player Special who were replaced by Camel as title sponsor, meaning the black cars with gold sign writing of the previous seasons were replaced by bright yellow with blue writing.

The 99T was the second Lotus chassis to be fitted with electronic active suspension after the team had experimented with the system on the Lotus 92 used in the first part of the 1983 season. The system's benefits of a consistent ride height with no pitch or roll in the chassis came at a cost, as the system added significant weight to the car (approx 25kg or 55lb) and also robbed the Honda turbo of approximately 5% of its power (the RA166-E was rated at approximately 900 bhp (671 kW; 912 PS) with 1987s 4.0 Bar turbo boost restriction). Ducarouge clawed as much performance back by spending many hours in the wind tunnel to compensate, although by the end of the season Senna was describing the car as nothing more than the previous year's 98T with a Honda engine instead of the Renault, and there were few in the F1 paddock outside Lotus who disagreed with him. The 99T was generally regarded as the more bulky of the cars that won a Grand Prix in 1987 with the Williams FW11B, McLaren MP4/3 and Ferrari F1/87 all regarded as better aerodynamically than the Lotus. Despite this, the 99T (especially in Senna's hands) was often among the fastest cars in a straight line.

The 99T proved to be competitive in Senna's talented hands, the Brazilian won twice and scored six other podium finishes during the season. The car was very good around slow and bumpy circuits like Monaco and Detroit (where Senna won both his races that year). This helped him and the team to third in the drivers' and constructors' championship. Senna also provided a poignant footnote that season, as his win at the United States Grand Prix was the final ever Grand Prix win for the team that Colin Chapman made famous. Senna would move to McLaren for 1988 and would win his first World Drivers' Championship. The season was also Senna's second worst in terms of pole positions, scoring only one in Round 2 at San Marino, his worst season being his rookie year in 1984 with Toleman.

Nakajima, who for his part very much overshadowed by his team mate, proved to be a steady, if unspectacular driver. He openly admitted that he favored the faster circuits such as Silverstone, Hockenheim, Österreichring and Monza, but was ill at ease on the tighter circuits. He qualified 17th in Monaco and finished 10th, 24th in Detroit before crashing out on lap 1, and 17th in Hungary before suffering a broken drive shaft on the first lap. Nakajima's best finish in his first season was a 4th at Silverstone for the British Grand Prix. He finished the season in 12th place with just 7 points scored. Nakajima's best qualifying performance came in Round 15 in Japan for what was the first Japanese Grand Prix since 1977. At the Honda owned track of Suzuka, Nakajima qualified in 11th place, only four places and 0.962 seconds behind Senna. It was the closest he would qualify to his team mate all season (as it was his home track, Nakajima had actually completed more laps at Suzuka than the entire F1 grid combined).

The 99T was updated for 1988 to 100T specification; the car technically was virtually unchanged, except for a redesigned nose section, longer wheelbase and tighter rear bodywork (helped by the reduction of fuel tank capacity from 1987s 195 litres to 150 litres), and the dumping of the active suspension for a more conventional setup. New team leader, 1987 World Champion Nelson Piquet (switching from Williams) used the car to score consistently but was unable to add any further wins to Lotus' score sheet however, with three 3rd placings his best finishes.

Senna's 99T was included in the Japanese and American versions of the 2001 video game Gran Turismo 3 under the alias "F687/S". The F687/S was the second most powerful Formula One car in the game (next to the F686/M) producing 900 PS (888 hp).

Formula One World Championship results[edit]

(key) (results in bold indicate pole position)

Year Team Engine Tyres Driver 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pts WCC.
1987 Camel Team Lotus Honda RA166-E
V6 (tc)
Japan Satoru Nakajima 7 6 5 10 Ret NC 4 Ret Ret 13 11 8 9 Ret 6 Ret
Brazil Ayrton Senna Ret 2 Ret 1 1 4 3 3 2 5 2 7 5 Ret 2 DSQ


  1. ^ "1987 Lotus 99T Honda - Images, Specifications and Information". Ultimatecarpage.com. 2003-06-06. Retrieved 2010-08-23. 

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