When we were shopping for our last car, a number of the dealers are now selling something that was called Roadblock by Autobahnd. It looked like the 3M clear stuff, but it was laser cut specifically for the car is was being installed on, as the Roadster probably isn't in thier computers they stated it would probably be more than a basic car to have it done.... for the Volvo we bought it would have been about $500, I can't imagine what it would be for a specialty!