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Underground Racing Lamborghini cracks 250 mph--watch the video

Earlier this year, we told you about Underground Racing, a shop in Charlotte, N.C., that makes a business out of upgrading Lamborghinis with twin turbochargers to boost engine output to more than 1,000 hp. Now, a Lamborghini Gallardo Superleggera upfitted by Underground Racing cracked the 250-mph mark at the Texas Mile event. Car owner Richard Holt made the 250.1-mph run in late March, but video was posted just this week.

Reviving the rotary: Two roads to redemption for Mazda's Wankel engine

Mazda is killing production of its famed rotary engine when the last RX-8 sports car rolls out of the plant next summer. But the company eyes two roads to resurrection. The first is using an improved engine as the main power plant.

New car sales still accelerating

NEW CAR SALES raced ahead again last month, according to official figures. A total of 72,163 new vehicles were registered in August 2014 - a 9.4% rise on August 2013 and the 30th consecutive month of growth, the Society of Motor Manufacturers and Traders (SMMT) said. Last month's figure took the year-to-date total to more than 1.53 million - a 10.1% rise on the total for the first eight months of 2013.