[Overdrive]

I hope you're only being figurative when you talk of tearing off your emblem. It'll be stuck on there pretty good, for one thing. You also don't want to have chunks of the tape stuck to the trunk lid if you do manage to pry it off, and worse still you don't want to end up warping the stupidly thin trunk lid from pulling at it.

Dental floss (and a good long time sitting out in the sun/blast with a hairdryer) works wonderfully and leaves you with a lot less to clean up afterward.