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Cummins works on a 28-mpg diesel with V8 power for pickups

Cummins Inc. is developing a four-cylinder diesel engine aimed at giving full-sized, light-duty pickups the power of a small V-8 and overall fuel economy of 28 mpg. The project began in September using the Nissan Titan pickup, which is being used to test the engine, pickuptruck.com reports.

Nissan upgrades the Versa engine to add mpg

The redesigned Versa sedan that reaches Nissan showrooms later this summer will post a 30 city/38 highway mpg rating, up from the current model's 28/34 rating. The Versa still has a 1.6-liter four-cylinder engine, but the 2012 model gets a dual-fuel injector system, the first U.S. application of the Nissan technology.

McLaren 12C Spider gets topless, goes sideways

McLaren has released a glossy launch video to accompany the release of the new 12C Spider supercar. It looks as if the boys and girls from Woking are determined to destroy the reputation for anodyne, 'boring' supercars at McLaren, given that the 12C Spider spends most of its time going very sideways in this clip. Then again, given the 12C Spider's hardware, it's not hard to see why it's such a lairy beast when off the leash.