In this hack, Sonic replaces Toad.
Driver sprites, icons and the character name is changed.
Patch to an US ROM.
Database match: Mario Kart - Super Circuit (USA)
Database: No-Intro: Game Boy Advance (v. 20180816-092117)
File/ROM SHA-1: 9D327C030C3E2D9007990518594F70C3340AC56F
File/ROM CRC32: ED316E37