This theme reminds me of an old Amiga game

There was a circular platform with like 20 cars on it... And it got smaller and smaller until all cars but one dropped off...

Does anyone know what the name of this game was?

I can't get rid of the basic concept of your playing field getting smaller and smaller, just need to think of something more long-running than that Amiga game... Or maybe pimp it with some live-saving items... Hmm... Let's see if this idea evolves until tomorrow morning xD