2009 Toyota Tundra TR Concept

The Tundra TR Concept caters to an entirely different crowd. This concept, Toyota says, targets drag racing enthusiasts. If you were to see the Tundra TR Concept on the street, you might think it's an ordinary regular cab truck (except for the black steel wheels) -- that is, until the 625-hp Tundra whips past you at a street light. Like the Tundra concepts above, this one starts with the 5.7L V-8, which is rated at 500 hp after TRD upgrades including a supercharger. That extra boost of horsepower comes with the dual tank nitrous oxide system that can be monitored with the Autometer Gauges.