The Muscle is a vehicle in Burnout 2: Point of Impact. It is capable of moderately high speeds, and has the ability to accelerate rather quickly. However, it is also extremely difficult to control.
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Complete Offensive Driving 101.
The Muscle resembles a more compact-looking Dodge Viper. It shares this resemblance with other cars carrying the moniker "muscle" in the series, indicating that the cars might be related.