A fiberglassed Mercedes 300SL with a blown 6.9L Chevy 350 that does the 1/4 mile in 8.1 seconds is a thing made in motor heaven. The Swiss owner spent three years forming and modifying fiberglass to produce a very viable lookalike to the original supercar, the 300SL. Check it out.
(Source: CrankAndPiston; original thread here)
I'm glad they didn't ruin a classic :)