The Speed Rocket is a hidden vehicle in The Simpsons: Hit & Run. It is only obtainable in Level 1. While this car is only available to the player in Level 1, it can be driven in any of the other levels of the game using the All Cars cheat.
The car bears a strong resemblance to the Blue Flame, which was a rocket-powered vehicle Gary Gabelich used to break the land speed record, at 630.478 mph (1014.656 kph). In-game, it is a white rocket car with blue stripes that shoots a large blue flame out of its exhaust as it is driven. The Speed Rocket appeared in the episode The Day the Violence Died.
The Speed Rocket is the fastest car in the game, with excellent acceleration to match. However, it is hindered by its poor handling and strength, so the player must take great care to not destroy it, or the engine will start to smoke with just a single crash.
The Speed Rocket is found only in Level 1. It is located outside the Solid Gold House in the richer area of Springfield, beside the "Vote for Mayor Quimby" sign. The house can be found at the vertex of the U-turn between Mr. Burns' mansion and the gas station by the draw bridge.