Team Lotus were to struggle throughout the season to score three points, its lowest score since . Warwick scored all three points with a 6th place in Canada and a 5th-place finish in Hungary, while Donnelly failed to score at all. More often than not, it was the unreliability of the Lamborghini 3512 engine which cost Lotus in 1990. Ultimately this performance was to witness the departure of the lucrative Camel sponsorship the team had enjoyed since 1987 and almost cost the team its existence. Ironically, the planned use of the Lamborghini V12 was also the major reason why triple World Champion Nelson Piquet chose not to re-sign with the team after 1989 with the Brazilian correctly predicting that the under-developed engine would hamper both his and the team's chances. While the Lamborghini, one of only two V12 engines in Formula One at the time (the other being Ferrari), had shown promise with the Larrousse team in its debut season 1989, it still lagged behind the V12 Ferrari, the V10 engines from Honda and Renault, and even the Cosworth built and developed Ford V8 engine in both power and more importantly reliability. Derek Warwick disliked the car, feeling the engine was poor and the monocoque was unsafe stating: "I didn't like to drive it. I was scared to be in it."