Depends on two things:
1. Is the car a "TRUE" collectable car? And how do you know?
2. How bad was the damage - if it was a dent in the front fender, a new one can be painted and bolted on and and it would not affect anything at all. Anything that can be bolted on or easily replaced will do no harm. If it was something like a rocker panel under the door and a rear quarter panel, undercarriage damage or some piece that has to be "hand-crafted" in some aspect - it will definately devalue the car some - even if it is done properly. If the car is a true collectable, a more serious repair done right will not matter much. If it is just a "cool" car so to speak that there is not a large demand for, there will be some de-value on a serious repair. The only thing that may tell the tale at the end of the day is if there are literally thousands of collectors wanting and fighting for your car's spec and series - this would define a collectable car. If your car is a TRUE collectable, a serious repair will bother you, but will not bother the collectors who want that car if it is done right.
In my professional opinoin, there are only a few really collectable Saleen's that may potentially be worth tons of money whether the car has lots of miles or barely any (as long as they are in excellent condition). The S351, the first Saleen in 84, the SSC, and a few others that have RICH history (Tim Allen's 500HP Fox Body car), POSSIBLY the SA series. After that, it does not look that great for major collectablility. Most other Saleens will hit a price point and hold it, as long as the car is in excellent condition needing no repairs. Keep in mind, if you are willing to take the chance, you will have to hold onto your car for another 10 - 20 years without needing money or more space that the Saleen is taking up. 10 - 20 years is a LONG time!
