Along with McLaren himself, Robin Herd, Gordon Coppuck,[8] Tyler Alexander, and Don Beresford[4] all worked on the layout of the M6A's chassis and bodywork.
The car featured the first monocoque chassis constructed by McLaren,[8] while the bodywork was specifically shaped to increase downforce suited for the Can-Am circuits.
Bruce McLaren Motor Racing carried out over 2000 miles of testing at the circuit in preparation for the upcoming Can-Am season,[4] tuning the car as well as gathering data for Goodyear's use.
Bruce McLaren's M6A qualified on pole position with a new track record, while teammate Denny Hulme's car led once the race began.
For the finale at the Stardust Grand Prix, problems with the Chevrolet motors led to blown engines and neither car reaching the finish.
Several of the M6As were also sold with Roger Penske purchasing one car for defending United States Road Racing Championship (USRRC) champion Mark Donohue.