http://www.atarimania.com/detail_sof...RSION_ID=20327
That link a picture of the game.
The game looks like pole position. It was a game in Pal format. The bad new is there is the programmer wasn't able to take the cartridge with him.
It was by developed by Titus. The company that was know for crap like Superman 64, Carmageddon, Carmageddon 64, Blues Brothers 2000 and The Blues Brothers.
The reason the game not released was Titus couldn't afford the production costs as a large number of cartridges had to be pre-ordered along titus in big financial trouble at the time.