
Drivers
- Sonic the hedgehog
- Miles "Tails" Prower - plane
- Knuckles the Echidna
- Amy Rose
- Shadow the hedgehog - cycle
- Dr. Eggman - 4x4
- Big the Cat (Sonic Adventure)
- Aiai (Super Monkey Ball)
- Billy Hatcher
- Amigo (Samba de)
- Ulala (Space Channel 5) - hovercraft
- Beat (Jet Set Radio)
- B.D. Joe (Crazy Taxi)
- Zobio and Zobiko (The House of the Dead EX)
- Jakie Bryant and Akira Yuki (Virtua Fighter)
- Mobo and Robo (Bonanza Bros.)
- Chuchu Pilots (Chuchu Rocket)
- Opa-Opa (Fantasy Zone)
- Ryo (Shenmue) - cycle
- Alex Kidd - cycle
- Banjo & Kazooie
- Your XBLA Avatar in the Ava-car 720
22 seems an odd number and I wonder if there are hidden or downloadable racers as well. Only time will tell.