This is my model of Eddie Lawson's 1991 Cagiva C591 500cc Grand Prix bike.
Modelled entirely from photographs (and the front disc diameter) i am reasonably happy that i got pretty close to the actual bike.
The only part not modelled was the engine due to lack of reference material, everything else from wiring/cables to lockwire on the bolts was done as accurately as i could manage.

modelled in 3D Max,, rendered using Mental Ray, and textured/composited with Photoshop.