I've heard it said that Kenenisa Bekele runs like a sprinter. Check this out - watch especially from 3:42 to 3:49 video time. Yeah, that's Gebreselassie behind him there.
http://www.youtube.com/watch?v=g-DecuiAZyM
Also, watch Bekele run a 52 second 400m from 26:01 to 26:53 on the race clock. The 80m acceleration up to the bell is just insanely smooth.
http://www.youtube.com/watch?v=bLg4j4gMzqA
He seems slightly bouncy at slower paces, but really finds it when he goes fast. Good running mechanics + crazy great anaerobic capacity and he can do sick stuff like that I guess.