Every car I have is used, except my truck and look what I've done to it

My GN and TTA were both stock when I bought them as I perfer to mod them myself and then I know what's been done and how it was done if a problem ever arises, but if I were to buy a modded one now that I know alot about them, I would look at how long the seller had the car..if shorter than a couple of years, that may signal a problem, generally if someone kept their car many years, then they cared for it better. also, does the seller have other "collector" type cars, if so, the condition of them may tell you something, and the fact that they "know cars" is a plus. If they are not "car people" and don't know much about the car, then beware. Another thing, try to find one from a board member in the "For Sale" section, most members that have been around since the board came back up in Spring of 2001 know their cars and if they visit the board often, they are probably passionate about their ride and take care of it.
I've seen many modded cars that I wouldn't have a problem buying from someone, just the only problem is those people that care for them the most are the one's that don't want to sell

but there are always uncontrollable circumstances that will blow all of the above theories.
When looking for my 10th Anniv TA, I knew when I talked to the guy on the phone, and seen a pic of the car in his driveway with a TTA and a 30th Anniv TA in the background, that I would buy the car from him, and he was 1,400 miles away! Yet there were several others before finding that one, that I wondered how they even came across such a rare car with low mileage cause they knew nothing about cars.
And if you're that close to Ron's, have him check it out before you buy and get his opion.