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.

Crash driver ran up £95k hire bill

A TRAIN GUARD ran up car hire bills of more than £95,000 after his £8,000 Mercedes was written off in an accident, a court has heard Sameer Umerji, from Bolton, Greater Manchester, entered into a credit hire agreement with a car rental firm which ran for around 18 months, judges were told. Detail has emerged in a written ruling by the Court of Appeal - after Mr Umerji and insurers became embroiled in litigation. One appeal judge, Lord Justice Underhill, said the car hire sum was "remarkable" given the value of the Mercedes.

Tesla uses data to refute New York Times report

Tesla Motors CEO Elon Musk says data don't lie. He's using information from a Model S loaned to New York Times writer John M. Broder to dispute a report the electric sedan didn't deliver enough driving range to take advantage of Tesla's Supercharger stations in the Northeast.