 All McLaren drivers used the Ford-Cosworth engines, except for Andrea de Adamich and Nanni Galli who used engines from Alfa Romeo in 1970.The McLaren M23, designed by Gordon Coppuck, was the team's new car for the season.Sharing parts of the design of both McLaren's Formula One M19 and Indianapolis M16 cars (itself inspired by Lotus's 72), it was a mainstay for four years.