While Audi basks in the glow of having the first win by a hybrid in the , the winning car is by no means the first flywheel hybrid to be prepared for the race. In 1995, Chrysler commissioned the Patriot concept, an open top prototype that married a liquid natural gas fired turbine to a flywheel storage system and electric motors. At the same time Ferrari built the conventional 333SP prototype that went on to win endurance classics like the Daytona 24. The Patriot was abandoned because there wasn't sufficient containment for a catastrophic failure of the flywheel which spun up to 58,000 rpm. The Patriot resides in the Boss Chrysler Garage gallery at the Walter P. Chrysler Museum in Auburn Hills, Mich.