This game is a simple racing game using keys 1 and 2 to steer the 0 key to accelerate.
Change gear with m key and break with o. There is no game loop, so when you crash the game ends,
I know that this one of the last games John was working on before his Ace stopped working.
To load this game type:
LOAD grandprix g
1 = left, 2 Right
0 = accelerate. (Zero key)
O = brake
m = change gear.
John's Advert from Popular Computing Weekly 14-20 April 1983.