Toyota Tundra TR Concept

Toyota's tribute to the lightweight, high-horsepower American muscle cars of the '60s and '70s is the Tundra TR Concept, an unassuming regular cab rig with a matte black paint job and steel wheels. Underneath, it's a pavement-eating monster.

"What we tried to do here is create the ultimate sleeper," said Warren Victor, Toyota's project manager for its SEMA trucks. "It's all performance. There's no cosmetics to it at all. If you have a look, though, not only does it have a TRD supercharger and a TRD lowering kit, it's got twin nitrous tanks mounted behind the front seats."

The roots-type supercharger boosts the Tundra's 5.7-liter V-8 from 381 horsepower to 504 hp and ups torque from 401 pounds-feet to 550 pounds-feet. The nitrous setup adds another 150 hp with each shot of gas.

"For under 30 grand, you've got a 600 to 650 horsepower vehicle," Victor said. "It's meant to go to Pomona (Raceway), where you can run the crap out of it and see what it can do."