These 2009 Jetta TDI race cars are "stock cars" in the truest sense of the word, as Volkswagen is prepping each one from a standard 2009 Volkswagen Jetta TDI. They do upgrade the brakes, suspension and toss in a cage. Thirty drivers will be competing in each of 10 rounds with one taking home the big check for $100,000, while the others get a lovely copy of the home game and an SCCA Pro Racing license.
You can buy your own 2009 Volkswagen Jetta TDI and get mileage similar to hybrids, and still have the stump-pulling torque of the 2.0-liter four-cylinder diesel, mated to a six-speed transmission in manual or DSG automatic for $1100. This car will easily pull down 40 miles per gallon on the open road and starts at $22,270, which is about what the hybrid twins from Japan (Prius and Insight) cost--and it's way more fun to drive, as this picture attests.