Yeah this game was great… I must have played it after other Sonic games had come out. I never knew this was his first appearance. Such a cool piece of history!

Did the car have windshield wipers that you had to turn on when you got mud on the windshield or am I mixing this up with a different game?

I had the Apple IIGS port of Rastan. I thought it looked amazing at the time. I am guessing it was about on par with the MS-DOS port, but maybe with more vivid colors.