The McLaren M18 is an open-wheel Formula 5000 racing car designed and made by McLaren in 1971.

[2] The car was conceived to participate in the 1971 Formula 5000 season to replace the M10.

[3] The car was powered by a 470-hp Chevrolet V8, which drove the rear wheels through a five-speed manual gearbox.

[4] The car, entrusted to the driver Brian Redman, did not have the hoped-for success and won only two of the 16 championship races.

[5]