Honda supplied its engines to Williams in 1986 and 1987 , as well as McLaren from 1988 to 1991 .
Honda supplied its engines to six constructor champions ( two with Williams and four with McLaren ) , as well as five driver championships ( three by Ayrton Senna in , 1990 and 1991 , one by Nelson Piquet in 1987 , and one by Alain Prost in ) , before dropping out of the sport again .
Honda in Formula One