Let me start off by saying I LOVE the interior design/ comforts. The car has been RELIABLE, but as soon as the warranty expired, the in-dash CD and the HUD info window started failing/ stopped all togther. Audi is aware of the HUD issues (very common issue), but refuses to address it out of warranty, and is VERY expensive to fix.
Interior decor/ ambiance... Looks like flying the space shuttle at night. Very cool.
Address the performance/ reliability issues with the HUD window and in-dash CD
I bought my pearl white A6 in February of this year with 67,000 miles and I should be breaking the 90,000 mile mark before the end of this month (Aug). Aside from two pretty costly repairs: ABS controller and Thermostat replacement; I'm delighted with this vehicle and can't wait to let this Quattro loose in the ice and snow in a few more months. Thats is what the world-renowned "Quattro" AWD was engineered to do and a superior job it has done, to say the least. Keep all four turning, everyone!
Bought used at 40,000 miles now has 112,000 miles. Fun to drive. Solid, no squeaks or rattles. Replaced 3 sensors, one of them twice; always $500 a pop. Replaced gasket to stop oil leak and burnt oil smell but hasn't worked. Some front end alignment issues also. No AM radio reception. First foreign car I've owned, not sure if I'll stay with Audi; more expensive maintenance than my previously owned Ford products.
Quattro drive system and overall handling.
Obviously Audi has some quality control issues to address particularly with electrical devices, gaskets, etc.