|Goal||Place 1st in the Grand Prix|
It is the thirteenth stage of the Championship and is composed of 6 Races. It is the last Grand Prix that the player races in before moving onto the Custom Series Championship. This Grand Prix contains a selection of tricky courses, Big Surf Grove and Crystal Summit Lake being two particularly challenging courses. The opponents in this Grand Prix are the Muscle (colored blue), the Roadster (colored red) and the Sport (colored black). If one of these cars are selected, the SUV appears, colored in white.
This event is comprised of 6 races:
|Sunrise Valley Springs|
|Big Surf Grove|
|Palm Bay Heights|
|Crystal Summit Lake|
|Airport Terminal 3|
- Upon winning this Grand Prix, the player is rewarded with a Trophy. The last event in the Championship, the Custom Series Qualifier, is unlocked.
- If all 6 Gold medals were received in this event (in other words, all 6 races were finished in first place), Face Off 4 is also unlocked.
- Completing the Street Storm Grand Prix contributes, with the 3 other Grand Prix in the Championship, to the unlocking of the Invulnerability Cheat.
- Winning a Gold medal on this stage also contributes to the unlocking of the Infinite Boost Cheat.