Realm of Gaming - Contains cheats and codes. - http://www.realmofgaming.com/?page=ps2cheats/midnightclubstreetracing.php&type=cheats
GameSpot: Midnight Club: Street Racing - [8.4/10] Reviewed by: Jeff Gerstmann. "takes the basic concepts and modes that made Midtown Madness so much fun and adds to it more hidden vehicles and a rudimentary plotline." Also includes screen shots and tricks. - http://www.gamespot.com/ps2/driving/midnightclubstreetracing/
Midnight Club: Street Racing Resources - Offers cheats, FAQ, walkthroughs, screenshots, and a discussion board. - http://www.neoseeker.com/Games/Products/PS2/midnight/midnight_cheats.html