After doing the revival of the "Grimace" futuristic bike from the Game Extreme-G, here are 4 of my favorite AI opponent bikes. The interesting and creative part of this was to imagine what the bike looks like with the only few low-res images I found on the web.
For these bikes, I tried for the first time the texture mapping onto unfolded surfaces. This way, I could draw and position every rust and dent precisely on the bike.
Alias / Lumiscaphe Patchwork 3D / Photoshop