2014 Dodge Charger E Rally Racing Stripes Decals - Pro Grade 3m Graphics 3mg on 2040-parts.com

MPG or performance: It's a trade with turbos

Some automakers say turbochargers offer high fuel economy and quick acceleration, the best of both worlds. Well, yes and no. Turbocharged vehicles allow automakers to keep power output high while they downsize engines for better fuel economy.

Bentley: We will overcome resistance to diesel engines

Bentley Diesel Engine - Bentley boss says it will happen We’re the first to admit that we are recent converts to the joys of a powerful diesel engine. But a Bentley Diesel seems perhaps a step too far. But according to Bentley boss, Wolfgang Durheimer, it’s not.

Listen: Upcoming Ford Focus ST to employ sound symposer

While BMW employs a digitally sanitized/perfected sound file to give M5 owners the proper sense of aggro urgency when motoring at pace, Porsche went a little more organic with its employment of a sound symposer to feed the 911's flat-six growl into the cabin of the extra-refined 991. Essentially, the sound symposer is an electrically controlled diaphragm in a tuned sound tube that brings the proper engine noises into the passenger compartment. It can be opened and closed by the car's onboard electronics to offer snarl when you want it and serenity when you don't.