When I was in photography class, I did a painting with light of a Harley. In a total dark garage, 30 seconds on the shutter with a small flashlight. On a few I did the whole bike, but the best one in my opinion was when I just highlighted parts of the bike and left the rest of it dark. Of course if I were to do it now, I'd do the jeep..........
And these are all great examples posted here.