EDIT: Not sure how to sort the photos beneath the appropriate text.
[I don't have great photos on this hard drive of any of these, but posting what I've got]. Closest to "muscle" I've had is a '95 Vette. Got it in '04 and sold it in '08. Did the custom paint and exhaust myself. EDIT 2: The MOB RULZ license plate was in reference to the Dio-era Sabbath album -- I got plenty of weird/nasty looks for that one, haha.
When I was 16 (2001), I bought this '75 Ferrari GT4 for about $13k (I had already been working on vintage Ferraris in some form for many years at that point). It had been sitting in a barn for ages and was non-running (turning the key would spray fuel out the rotten hoses, there were some rust issues, etc.--though the interior was "nearly imamaculate"). I spent about 6 months tearing it apart, stripping it down to bare metal, repairing/restoring rust damage, rebuilding the engine, blah blah blah.
I currently own this 328 GTS and have had it 10 years (if anyone cares, Bon Jovi originally purchased it and owned it about 10 years).