There was an original post at Youtube from a guy showing on a video how to draw a fairly good car in MS Paint. The author did not use a pen tablet or a pic to look at, just free handed with a mouse and MS Paint to its simplest…
[youtube=http://www.youtube.com/watch?v=G0smntbxyJ8]

A couple of weeks later another guy, came with a “response” at this video, with more amazing results!
[youtube=http://www.youtube.com/watch?v=ElrldD02if0]