An early bad dump that was popular with collectors in the mid-90s to early 2000s, but has since lost knowledge, that is known as:

Super Mario Kart (E) [b1].smc

In GoodSNES 3.23.

It contains some odd changes from a very corrupted game or dumper, such as missing or wrong sound effects, jumping for no reason, respawning randomly, or even freezing altogether.

Here's a time trial showcase of Rainbow Road with Luigi. Well, you don't even need to go on the road!