I had Stunt Car Racer on the Commodore 64. Great game... The Roller Coaster track was my favorite.
Also the original Test Drive series on the Commy were awesome for their time. There was also an F1 game, I can't remember what it was called but it was a lot of fun.
Sega Rally Championship on the Saturn. When I first got my Saturn way back in the day it came with a demo disc containing the first track of Sega Rally. I played that until my eyes bleed. Later I found the actual game at a pawn shop & mastered the other tracks. I can honestly say that this is one of the few racing games I'm really good at.