Buying a used race car is always a bit of a mixed bag; if you build it yourself, you know what you’ve got and what you’ve done but it’s more expensive. Buy someone else’s project, though, and you can spend years trying to undo what they’ve “done”. But if you find just the right car to buy, you can get a serious performance bargain – top shelf quality at a house-brand price. Today’s 911 may just be this exact case; a staple of the racing community, long before “Miata” was the answer to every question automotive, if you wanted to go racing you bought a 911, such as this 1986 Carrera: