Having a Roadster, the back window isn't visible all the time. Most of the time I have the car out, the top is down and then it can't be seen. If you have the decal on your car, does it stay on the window well, even after many washings?
If so, do you think it would stay on the paint just on the body somewhere? Having the Alabaster, I was thinking it would show up better on the paint somewhere, but only if it lasts. We have similar decals on the race cars and I just wax over them, but those cars don't get washed with soap and water.
My car probably won't be coming out much now that winter is here.
If you DO have the decal on your car, please post a picture!