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

Lamborghini Reventon Roadster leaks

The first picture of the Lamborghini Reventon Roadster ahead of Frankfurt The Reventon Roadster details are still a bit under wraps, but we’re pretty certain it will be powered by the same lump as the LP650-4 Roadster which is currently making its way down Lamborghini’s production line. That will endow the Reventon Roadster with a 0-60mph time of around 3.4 seconds. There is still an outside chance that the Roadster will get the engine from the LP670-4, but that’s a ‘Wait and See’ scenario until Lamborghini coughs up some proper detail.

M4 junction to close over tailbacks

A JUNCTION of the M4 motorway in south Wales will be closed as part of a trial to cut traffic tailbacks. The closure of junction 41 at Port Talbot starts this summer and aims to reduce congestion in both directions. Wales' Economy and Transport Minister Edwina Hart said studies predicted it would increase the capacity of the M4 by 11% westbound and 2% eastbound.

For new CAFE rules, automakers place high-stakes tech bets

Game-changing 2015 fuel economy rules are forcing vehicle development teams to make high-stakes bets on expensive technologies--bets that will separate the winners from the also-rans. Not only do federal rules target a 2015 fleet average of 35.5 mpg, up from the current 27.5 mpg for cars and 23.1 mpg for light trucks; they force automakers to bet on different technology packages for each vehicle segment. Companies that do best at mixing technologies while keeping down costs will have an advantage when buyers wince at higher stickers.