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Report: Gasoline engine has big bang for the fuel-economy buck

A government report says improving the gasoline engine will yield huge gains for the consumer and the environment as automakers consider ways to improve fuel economy over the next 14 years. The Obama administration's technical assessment looked at four technology scenarios by which automakers might attain suggested CAFE goals of 47 to 62 mpg for cars and light trucks by 2025. The scenarios differed by the portion of an automaker's fleet that was accounted for by electrics, hybrid electrics and plug-in hybrid electrics.

McLaren MP4-12C (2011): new testing video

McLaren has issued this new video of its 2011 MP4-12C in the final phases of testing – and McLaren claims it's faster than the 458 Italia or any Gallardo. Watch the video in our player at the foot of this page.The matt black vinyl disguise demarks this pair of cars as the latest McLaren 'XP Beta' test cars, compared with the earlier black-and-white 'XP' prototypes spied last year.'XP Beta' prototypes? All very McLaren!Quite.

Cross-country in a Corvette Stingray: Day Three

Day two of our cross-country Corvette trek ended in North Platte, Neb., where we encountered a couple of C2 Sting Rays in the parking lot of our Holiday Inn. We shot some photos and hit the sack around 1 a.m. Day three would be the second-longest of the trip at around 14 hours.