A Genesis / Mega Drive version of Road Riot 4WD was in development at Tengen in 1993, but it was later cancelled. The game is an arcade racing game somehow similar to Mario Kart. A SNES (1992) and an Arcade (1991) versions do exist, but while the SNES version doesnt look that good, the Genesis one seems to have been graphically more similar to the Arcade game. It’s currently unknown if the canned game would have had new tracks. Some images were found in Joypad magazine #7, EGM # 40 and # 41!
Thanks to Celine for the contribution!