The Volkswagen Group 2.0-liter clean-diesel TDI engine has been fitted to quite a number of VW vehicles over the years, as well as the Audi A3 TDI. Now the company has announced a voluntary safety ...

According to recent media reports, Audi has admitted that 2.1 million of its cars have been fitted with the cheating software allowing TDI engines to lower emissions during tests. A recall will be ...

The Powers That Be at AutoGuide.com like us to start our reviews with driving impressions – you know, the part where the reader is in the driver’s seat. The action. And when it comes to the Audi A7 ...

Got a 2009 or 2010 Volkswagen Golf or Jetta with the TDI clean diesel engine? Or an Audi A3 TDI? Ever had the engine stall unexpectedly? If so, the National Highway Traffic Safety Administration might ...

Finding a balance between fuel economy and performance is never easy; and all cars must compromise somewhere. Take the Tesla Roadster. Fast, emissions-free, and nearly zero maintenance. The compromise ...

Wayne Cunningham reviews cars and writes about automotive technology for CNET's Roadshow. Prior to the automotive beat, he covered spyware, Web building technologies, and computer hardware. He began ...

Audi is betting big on diesel. For the 2014 model year the German automaker has introduced diesel engines to the 2014 A6, A7, A8, and Q5, with the ultimate goal of making diesel available across most ...

WASHINGTON — The Audi Q5 has been around for a while but the latest tweak to the crossover is improved fuel economy. Audi launched a hybrid model and the TDI with a peppy 3.0L V6 turbo diesel engine ...

Third. We finished third. To launch the TDI version of its new A3 sedan, Audi arranged a fuel-mileage challenge. The goal? Albuquerque, New Mexico, to Coronado, California, on one tank of diesel. That ...

European automakers may be taking tentative steps into hybrids, but much of their green-car strategy still depends on clean diesels, adapted from engines that power half the new cars in Europe. Six ...

The 2015 Audi A8L TDI is a big car that doesn't feel like a big car. It doesn't feel like a small car either, or a mid-size car. It's indisputably a big car, but descriptors such as "hulking" or "vast ...