Think of a plain, little Dodge Neon. Now slap in a Viper ten-cylinder engine. That’s equivalent to the Jetta R GT Concept created by Volkswagen and HPA Motorsports. Engineers started with a front-wheel-drive 2005 Jetta 2.5L with an automatic transmission. HPA, a company that specializes in VW engine and drivetrain conversions, disemboweled the stock car and retrofitted it with a twin-turbo V6 and 4Motion all-wheel drive. In addition, treats like air jacks and Recaro seats were tossed in for flavor.

What is it? One bad-ass Jetta.