The most expensive Audi ever is... the Q7 V12 TDI. More expensive than the R8, A8 L W12. The 500 hp V12 TDI will start @ 130,600 Euro in Germany. The previous most expensive Audi, the A8 W12 costs only 125,300 Euro. The R8 is only good for 113,800 euro.
For comparison the Porsche Cayenne Turbo S retails for 132,774 Euro. And the diesel in the Audi gets 32% more mpgs and produces 60 grams less C02 per kilometer than the Porsche.
360 degree view / color and wheel configurator
http://www.audi.de/audi/de/de2....html

For comparison the Porsche Cayenne Turbo S retails for 132,774 Euro. And the diesel in the Audi gets 32% more mpgs and produces 60 grams less C02 per kilometer than the Porsche.

360 degree view / color and wheel configurator
http://www.audi.de/audi/de/de2....html