There's a guy who was credited for playng the Harley Davidson on a Joe Satriani album, so it qualifies as instrument i guess.
Daimler Reitwagen 1885 brings back childhood memories it's my favorite one i used to ride that damn thing to school everyday gosh i miss the good old days
I had a show with one piece where there was 4 Harleys on stage 10 years ago... Then the bikes were getting down of the stage into the public. That was hysterical (Obviously with security measures)