Magnaflow Performance Exhaust 15769 Exhaust System Kit on 2040-parts.com

Nissan Sentra wrings out 1 mpg more to sweeten payout

Engineers at Nissan Motor Co. are scurrying to eke another mile or two per gallon out of their vehicles to win customers who come looking for federal cash-for-guzzlers money. "We want as many of our products as possible to pop up on the shopping list," Nissan North America spokesman Brian Brockman says.

Caterham AeroSeven Concept unveiled in Singapore

Well this is sure to divide opinion. What you're looking at here is the Caterham AeroSeven Concept - the first glimpse of the new road-going Caterham, due to arrive in autumn 2014. It was unveiled in Singapore ahead of this weekend's F1 Grand Prix, and it's already generating quite a buzz in social media circles.

Video: Darrell Waltrip laps Bathurst with V8 Supercar driver Jason Bright

One of the most entertaining things to come out of the Bathurst 1000 last weekend in Australia--besides Garth Tander and Nick Percat taking the checkered flag--was ex-NASCAR driver and commentator Darrel Waltrip going for a wild hot lap with V8 Supercar driver Jason Bright. After taking the first turn at speed in the 650-hp Holden Commodore, Waltrip yells, “Impossible!” The video gets even more entertaining around the Esses and the Dipper, two succeeding corners. The clip is full of repeatable one-liners from Waltrip including, “I lost my lunch, and I didn't even have lunch.” He calls the track on Mount Panorama a geological oddity.