It's a 1968 Pontiac LeMans with a 350 HP 400 c.i. engine. It has 192,000 original miles on it.
Update: I sold this car in August of 2005. It had 207,000 miles on it and the pinion gear was going bad in the differential. I was not up to the repair, so it had to go. I told the guy who bought it that the pinion gear was bad and that he needed to be careful driving it home. Two days later, I discovered that the left rear wheel came off while he was going down the road...at close to 120 MPH!