Explore the evolution of Audi's iconic 4.2-liter V8 engine from its debut in 1991 to its final naturally aspirated form in ...

Get accurate pricing information for a used 2009 Audi A6-V8 Sedan 4D 4.2 Quattro, and explore other options.

For 2005, the Audi A6 has been redesigned inside and out, is larger in every dimension, and contains stunning technology--all near the same price as the range of 2004 models.

There are 30 reviews for the 2001 Audi A6, click through to see what your fellow consumers are saying.

Audi reckons their 2-litre diesel powered A6 Ultra model can sip 4.2 liters of fuel every 100 kilometers (67 MPG) and just to prove it, they’re attempting to beat a World Record. In ...

The A6 offers a premium German sedan experience at a lower price than its homeland rivals. Power starts with the competent 3.2L V6 and progresses all the way up to a world-beating 5.2L V10.

Exhibit B, the second gen Audi RS6. The first one used a 4.2-litre twin turbo V8 to propel a widebody family estate into the ...