Open Question: Does anyone know that old TV show that had those 3 creatures who drove a car that had gears that sang? :S?

There was this show that used to play on tv a long time ago with 3 creatures things that looked like muppets or something... one was green who had shaggy hair that was always in his face... and the drove this car to go talk to real people and the car had gears that sang songs and stuff.... If anyone knows that name of the show, its been bugging me for a while......