Road Runner was Taro's first car and was also the one he used in the World Race. Several changes have been made to the car since joining the Metal Maniacs: Including a chain sterring wheel, a new engine that comes out of the hood, a "classic" speedometer, and a new paint job. During the Storm Realm Taro and his car a struck by a ball of lightning causing the car to flip several times and Taro to pass out. The damage sustained appears to be beyond repair as Taro is switched to Rivited afterwards. It is unknown what happens to the remains of the car.
- Grappling Hook
- Lava Tires
- Lava Plow
- "Chain" Steering Wheel
- The Road Runner is the only one of the original World Race cars that goes into the Storm Realm that comes back out in one piece.
- The Road Runner is the only licensed car in Acceleracers.
- It is unknown why Taro decided to replace Road-Runner for Riveted when it was in working condition after the Storm Realm