[RacingRicki]

Everyone's ideas on here are good for removing decals. Before sticking new ones on, consider this.

Go to a sign shop and see if they will sell or give you some static cling vinyl. Stick the decals to the static cling then cut out around the edges of the decal. Now stick the decal on the car. You will be able to move the decals around remove or reapply them easily.

I have been doing this for years. It is a little work to apply the decals to the cling-on vinyl but nothing compared to peeling them off without using static cling.