I'm in the market for a "personal car". Not something for the family, but something just for me to enjoy. I have been driving my current "personal car" since 1997 and it's time to upgrade. I'm not planning on brand new, but something about 4 years old with fairly low mileage and good maintenance records. In the past when buying used cars, I have avoided cars that have mods (engine, aftermarket wheels, sound systems, etc). Erring on the side of caution I tend to be more comfortable with cars that are bone stock. Some of the cars that I have looked at have a lot of mods and without some background on who did the mods, I think that I should stay away from them. Am I being irrational? Am I missing out on some great cars? What say you?