2006 Audi A6 4.2 quattro 4dr Sedan AWD (4.2L 8cyl 6A)
I had finally outgrown my e36 m3 and decided to get a more austere sedan. I shopped Infiniti, BMW and Audi. I picked up a CPO 2006 A6 and couldn't be happier with it. The car drives wonderfully, although the V8 is a little thirsty if you keep your foot in it. I expected that though. The car is built very solid, and offers 90% of the 5er performance, but with a bit more comfortable ride. I have non-sport suspension btw, and look to change that at some point, mainly to minimize the 3" wheel gap (Toyota?). Otherwise, the car is gorgeous, and I look forward to keeping it for quite awhile. I think an A6 is a terrific CPO purchase, the extended warranty could come in handy (hopefully not).
Bluetooth, NAV, sun shades, auto-leveling/tracking xenons, great looking car!
Everything I would suggest to be improved has been addressed in 2008+ models, except the gigantic wheel gap.