It ran perfectly for 2,000 miles, then out of nowhere, timing chain failure, misfires, and a heartbreaking decision, why did ...

The A8 is equipped with a 4.2L twin turbo diesel V-8 that puts out 326hp and pushes the big A8 to 60 mph in 6 seconds. Under normal conditions, Audi says, the A8 will get about 17.5 mpg (U.S.). In ...

There's no way that a 4,500 pound long-wheelbase diesel-powered luxury sedan from a decade ago could be any good at rallying, right? It'd be too big and heavy, plodding around the rally stage like ...

Audi's clean diesel initiative here in the United States started with the A3 TDI hatchback and Q7 TDI crossover, but in the coming years, we can expect the vast majority of the company's volume ...

Audi's quattro all-wheel drive system, standard throughout the lineup, remains an asset for both all-weather handling and performance. With the addition of a diesel V6, the A8 is able to achieve ...

If you're after a regular A8 (not the S8) then we reckon the 282bhp 3.0-litre V6 diesel 50 TDI is the most sensible choice because it costs the least to buy and is remarkably efficient on a run.

The Audi A8 swims in a luxury car shark tank where those paying the ... So, the new 2.4-litre four-cylinder turbo-diesel (lifted from the Cannon’s Alpha big brother) makes for 15kW extra (135kW) and a ...

Audi's quattro all-wheel drive system, standard throughout the lineup, remains an asset for both all-weather handling and performance. With the addition of a diesel V6 for 2014, the A8 is able to ...