The Ariel Atom is a high performance sports car made by the Ariel Motor Company based in Somerset, England. The car is also manufactured under license in the United States, originally by Brammo Motorsports, currently by TMI AutoTech Inc. There have been three Ariel Atom incarnations to date: Ariel Atom, Ariel Atom 2 and Ariel Atom 3. The current model is the Ariel Atom 3 which is also the most powerful of the three. Ariel has also announced an RS Performance model with a motorcycle-derived 500 bhp (373 kW; 507 PS) V8 engine.