Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Don't fear Ford's 1.0-liter three-cylinder engine

One liter, three cylinders—that's the genetic makeup of Ford's smallest EcoBoost engine yet. And it's coming to the United States. A unit of measurement more suitable for water, olive oil or beer will be powering a Ford on U.S.

Porsche Panamera S E-Hybrid does 62mpg in the hands of motoring journalists

The Porsche Panamera S E-Hybrid – a Panamera with a plug-in hybrid powertrain – arrives last month, along with a 2013 facelift for the Panamera range , complete with claims from Porsche that it could do 91mpg. That was never going to happen in the real world, but Porsche has followed up its official economy figures with a degree of proof that the Panamera E-Hybrid can actually achieve very impressive economy numbers in the real world, and in the hands of motoring journalists – a group not renowned for their light touch on the throttle. At a press event in Hockenheim, Porsche let car journalists loose on the Panamera E-Hybrid for a total of 42 drives over a total distance of 750 miles and returned an average of 62mpg.

Some hybrids are not a green as they seem, interest group says

Car buyers who think they are helping the planet by choosing a hybrid vehicle to aid in cutting emissions don't always get the biggest bang for their buck, according to an environmental interest group. A report from the Union of Concerned Scientists shows that some hybrids come at a much higher price tag than their similarly equipped, conventional-powertrain counterparts, yet offer little in the way of environmental gain. These not-so-green hybrids compromise their value or eco-friendliness in a variety of ways.