McLaren M23D - 1976 Japanese Grand PrixA development of the McLaren M16 Indianapolis 500 car, the McLaren M23 was introduced in its first form as a Formula One contender in 1973 and would remain competitive until McLaren replaced it in 1977. Housing a Ford Cosworth DFV engine, which was prepared by specialist tuning company Nicholson McLaren Engines, the M23 was capable of around 490 brake horsepower. The 1975 season saw further development for the M23, including the edition of a six speed