The trendy and gorgeous Audi A7 is receiving a facelift for 2015, and with it comes a new 3.0 TDI Ultra model that pushes the turbo-diesel to new heights of efficiency and cleanliness. Introduced in ...

Growing up around lots of diesel cars of all shapes and sizes, the American aversion to the fuel still puzzles me; I mean the diesel is oftentimes the more sensible engine choice for many cars, and ...

Do you like the look of the diesel Audi A7, but think it isn't quick enough? Audi may just have the car for you. The A7 Sportback 3.0 TDI competition is a more powerful version of the standard A7 3.0 ...

Audi has so far stuck the new 'ultra' badge on TDI versions of the A4, A5 and A6 models. All use 2-liter turbodiesels with outputs ranging from 136 to 190 PS. Now, there's clean version of the ...

Last year, Audi announced that it was expanding its lineup of TDI models for 2014 with the Q5, A6 and A7 joining the diesel-burning Q7 and A8 L models already in existence. The Q7 TDI has been out for ...

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 ...

The 2014 Audi A7 TDI is rated at 24/38 mpg (city/highway), up from the standard gas-powered car's ratings of 18/28 mpg with a 3.0-liter supercharged V-6. The diesel-powered car is said to hit 60 mph ...

Audi has released an anniversary model for the recently facelifted A7 Sportback to celebrate 25 years of its TDI technology. With 322hp (326PS) and 650 Nm (479 lb-ft) of torque, the Audi A7 Sportback ...

Nelson Ireson June 10, 2013 Comment Now! Diesel is making a comeback in the U.S., from the luxury ranks all the way to the entry level, and Audi has been at the front of the new wave. Today, the ...

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The fact that the new Audi A7 doesn't have visible exhaust tips disappointed more than a few people. Engineers probably shaved a couple of grams off their emissions charts by streamlining the back end ...

With the exception of Italy, sales of diesel cars are still falling in the big European markets. Hardly an ideal time for any OEM to add fresh compression-ignition engines to a luxury model. Audi ...