I bought a real C64 and some random disks off of eBay and I think Pitstop was one of the games I got along with Bubble Bobble, Star Paws and many others. The C64 eventually stopped working probably due to a bad power supply and I disassembled and resold the individual chips and other parts to get some of my money back. It was a fun experience even though I am too young to have grown up with the C64.
I wrote pong and breakout clones using a cross assembler and mostly complete clone of Pac Man but I lost my files sadly. Really a fascinating computer.