A true collector doesn't just own one; they own five. The Spanish version, distributed by Nintendo of Spain (NES up to that point), is particularly sought after due to lower initial print runs.

While Super Mario Kart is not a text-heavy game, Nintendo of Europe made specific changes for the EU market:

If you are putting together text for a marketplace listing or product description for the European version: Super Mario Kart (SNES) - EU PAL Version

If you are looking for a physical "complete" piece for your collection, a EU version typically includes: The Cartridge: The European (PAL) version of the game. The Original Box : Featuring the European cover art [2, 14]. The Instruction Manual

The game's music and sound effects are also affected by the 50Hz refresh rate, resulting in a slower tempo and lower pitch for the soundtrack composed by Soyo Oka . Regional Censorship and Changes