The Lotus 87 was a Formula One racing car used by Team Lotus in the second part of the 1981 Formula One season and in the first race of the 1982 season. The car, driven by Italian Elio de Angelis and future world champion Nigel Mansell, was another step in Lotus' development of ground effect cars. Its predecessor, the Lotus 81 had proven to suffer from a chassis that was not rigid enough, compared to the dominant Williams FW07. Lotus therefore introduced a new chassis, built out of carbon fibre and reinforced by kevlar sheets, since the team felt carbon fibre alone would not be sufficient to provide the chassis with the stability needed. As the John Barnard-designed McLaren MP4/1 would prove, this was a miscalculation. The chassis was originally planned for the ambitious twin-chassis Lotus