Edelbrock Single-feed Fuel Line 8131 , Used , Tested Good 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.

Merc to revive straight six, plus 4cyl and smaller V8s

Mercedes has just signed off a new engine family which will see most full-sized Mercs in future run four-cylinders, downsized V8s and… straight sixes. A friendly Mercedes engineer recently met CAR to disclose the engine plans for future models, including the surprise disclosure that Merc plans to switch to straight sixes, like its rivals over in Munich.  It's fair to say I almost choked on my breakfast croissant when I found out the details of the next MB engine generation which has just been signed off for release in 2015. Mercedes' future four-cylinder engines Again, there will be a family of new low-cost fours, and the big-bore V8s will be replaced by a series of downsized turbocharged 4.0-litre units.

GM looks for new product boss

General Motors is about to get another product boss. The question is, who? Vice chairman Tom Stephens will move to the freshly minted position of chief technology officer for GM on Feb.