Rally = Almost guaranteed car damage
AutoX = Safe fun for your daily driver
I'm thinking an old Ranger or Mazda B3000 truck with a 5-speed would be a great rally beater...
Don't waste another minute waiting on parts, or anything else. Just get out there and start racing! You will suck at first, and you will be slower than many other cars, but the only thing you will regret is not starting earlier...