The Lotus 98T is a Formula 1 racing team Lotus, which was used in the World Cup season in 1986. Developed by Gérard Ducarouge and Martin Ogilvie car was driven by Ayrton Senna and Johnny Dumfries, won two of 16 races and took eight pole positions. The team finished in third place in the Constructors’ World Championship.
Was powered by a V6 the 98T Renault engine with 90 ° cylinder angle and the type designation EF15B who came with both conventional and pneumatic valve control is used. The longitudinally mounted turbocharged mid-engine had 1500cc displacement and performed at 5.5 bar boost pressure up to 1300hp. The transmission took over a choice of five or six courses tipped to manually shifting transmission Hewland. The monocoque was of carbon fiber reinforced plastic.
The 98T showed some technical innovations such as a simple form of automatic level control and a computer-based consumption control. During the season, appeared again and again on accusations of manipulation, but it was never an official protest is lodged.