Any possibility of that happen in the future (like the regular genesis one already does?)
Road Rash 2 with turbo enabled is a bliss, totally different game.
On the Sega CD is nearly unplayable. Funny thing is that the Sega CD version is the only version that plays the actual tracks (band songs/redbook audio) in-races. It's bigger cousins (3DO/PS1/Saturn) all play crappy tunes.
But that's just an example. Probably would benefit other games/situations.