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

Make like a tree and Leaf: We drive Nissan's coming electric vehicle

From behind the wheel, the production version of the Nissan Leaf electric car is smooth and silent, feels nearly friction-free and offers all the prodigious torque inherent in an electric car. That's what we found after a short drive around Dodger Stadium in Los Angeles on Friday. The body you see in the photo is a Versa.

Future Audis may time traffic lights for you

Here's a trick efficiency-chasing hypermilers have been using for years: spotting the cycles of stoplights from 100 to 200 yards out and letting the car coast up to the light just before it turns green, then carrying on without ever letting the car come to a complete stop. These hypermilers, along with professional truck drivers, do this because they know that accelerating from a standstill burns the greatest amount of fuel, and because letting a car coast up to the light with the automatic transmission downshifting by itself is easier on the transmission than stomping on the brakes right beneath the stoplight. Oh, and it's easier on the brake pads as well.

Porsche big up the Panamera S E-Hybrid (video)

The Porsche Panamera S E-Hybrid (pictured) is a performance Porsche too We’ve long seen hybrids, and plug-in hybrids, as the perfect performance weapon for high-end cars, where the addition of an electric motor offers an unbeatable combination of power and economy. That’s the line that Porsche are taking with the new Panamera S E-Hybrid, and they demonstrated that recently by revealing that the new E-Hybrid managed to average 62mpg in the hands of a bunch of motoring journalists on a test day. Which is an impressive number for any car in the hands of a group of people with lead-lined right feet and clearly demonstrates that the Panamera Hybrid really can do silly mpg even in the real world.