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

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.

Jeep concepts headed to Moab Jeep Safari

Jeep and Mopar didn't create the Moab Easter Jeep Safari, but that they're using the occasion to introduce wild concept vehicles and new parts to a crowd of their most rabid fans has become something of a company tradition. Jeep and Mopar previewed six concepts on Tuesday that are destined for the Moab desert. On hand were three customized Wranglers, a Grand Cherokee, a J-12 concept and a Mighty FC concept.

2014 Hyundai Genesis first glimpse

Here are the first official shots of the next Hyundai Genesis, a long, cool drink of water that will chart the course for many larger Hyundai sedans to come. “We want more premium luxury,” said Moon Sik Kwon, president of Hyundai R&D. “Genesis will lead the way.” Details are not officially released yet, so, even though we just drove the thing all over Hyundai's Nam Yang proving ground here in Korea and have a definite opinion about it, we can't tell you whether or not it was a well-composed, powerfully quick, huge step up and over the first Genesis sedan.