Flowmaster Force Ii Scavenger Series Collectors C134214350 on 2040-parts.com

BMW X6 M50d: Performance & economy revealed

BMW X6 M50d: Performance & Economy figures revealed With the BMW X6 M50d confirmed as on its way, we now get news on its performance and economy. We’ve been reporting the likelihood that BMW will drop their new three stage turbo diesel in to the X6 for a long time now, and that’s a racing certainty after BMW teased what is almost certainly the X6 M50d this week with a video. But what about power, performance and economy on the M50d?

NHTSA proposes rules for automakers to add sound to hybrids, EVs

Automakers would need to make hybrids and electric vehicles emit sound under rules that the National Highway Traffic Safety Administration proposed on Monday. The rules, ordered by Congress three years ago, are meant to protect pedestrians and bicyclists from vehicles that make little sound when using electric power. NHTSA says that designing the vehicles to make noise at speeds below 18 mph would prevent about 2,800 injuries over the life of each model year of vehicles.

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.