Green Track Cars at the Ultimate Track Car Challenge!Ray Wert6/05/08 1:08pmFiled to: VwVolkswagenGreenE85ScionLotusXbTdiGreen MachineGrassroots MotorsportsUltimate Track Car ChallengeEditInvite manuallyPromoteDismissUndismissHideShare to KinjaToggle Conversation toolsGo to permalinkBy Rob EinaudiEditor-in-Chief It took a bit of poking and prodding, but we managed to round up four "green" track cars for the Grassroots Motorsports Ultimate Track Car Challenge on Sunday. We have two Jetta TDIs—the Chili Pepper Racing TDI and the Kerma TDI. We'll also have the AC Propulsion eBox, which currently holds the 1/8th mile record with the National Electric Drag Racing Association for a street conversion. And finally, we have the Organic Racing Lotus 7 replica (an E85-powered WCM Ultralite S2K). These four will compete to see who's the fastest, and who's the greenest. Stay tuned for full coverage of Sunday's event at Buttonwillow.