Like the other guy said, I'd be wary on this this "rebuilt" title. Even if he tells you, check the lines of the car. Might have been wrecked and covered up nicely. I bought a 'rebuilt' car once. When it came time to change the bearings, nothing would fit. It seems during the rebuild they took out the original hub and knuckle and replaced it with another cars completely some how (don't ask, it was just done, had to go to a honda factory for them to say "You pulled that out of what?!"). But yeah, check that shit as well as you can, six sounds a little suspicious for an RX-7