Originally Posted by NeverEnough

It's actually pretty easy if you are sneaky! First off, when you go look at the car bring a can of aerosol glass cleaner (not a spray bottle). Lightly spray the top part of the front and rear windshields and wipe it clean. Look very closely as the streaking and residue dries. You will see an outline of a sticker that used to be there that will say "Track Experience". It's about 12-15 Inches long and will come down about 3-5 inches from the top edge of the glass. The dealer will look at you funny, but it WORKS. Another product that will do this is RainX, but the glass cleaner is better. The other two ways are easy as well. First, with only 3,500 miles, the driver's seat should look NEW, there should be VERY little if any evidence of wear on it or the steering wheel. A little creasing is normal, but if there is obvious wear on the outside seat bolster from people constantly getting in and out, you may have found a track car. The other way is have the dealer pull the front wheels off and look at the brakes. If they are noticeably worn, then it is also a suspect. If the calipers and dust shield or CAKED with brake dust and the pads look fresh, then they have been replaced and the car is suspect. Also, at 3,500 miles the tires should have evidence of being driven, but not be rounded on the edges or look 100% new. If the tires are rough looking and look old then it's suspect as well. If the tires look like they were put on yesterday and have NO wear pattern at all, then they have probably been replaced, and at 3,500 miles, that would make me suspect it. The glass trick is the best one, but the other ones are cheap insurance.

Hope this helps!