hummers modified with hybrid diesel engines that get 60mpg and 600hp

fast company reports on self-trained car tinkerer johnathan goodwin, who has been using mostly stock components in innovative ways to create diesel engines that are capable of achieving a combination of numbers never thought possible: huge horsepower, amazing acceleration, and planet-saving mpg.

it's a full article so if you're short on time, check out daily kos' recap. they also link a clip of the video of goodwin's biodiesel musclecar smoking a lamborghini at the racetrack, from pimp my ride...