Check for all of the basic used car stuff... there is maintenance stuff to do once you get it. The only thing I could really say to look for above the basics would be to check the rear wheel wells for burnt rubber. If there is rubber crap, then, most likely, the previous owner thought he was a mad tyte jdm driftor then the car has been beat on. Most of the time it is no big deal. It is just something to keep in mind, especially if the seller is saying he babied it all of the time.