I wouldn't buy a turbo Audi again.
God Bless the Audi Advantage Warranty-- since the car was in the shop almost weekly for blown hoses, leaks, cracked heads...
But the final straw was the timing belt tensioner failure and head crash right out of warranty. 2,000 miles out of warranty.
The A4 was fast, and fun to drive but I cannot justify paying $400 to $1000 for every g-damn visit to the shop-- who became uninterested in my satisfaction since I was not a buyer from the 'new store'.
In all, the RS has been reliable, non-leaking and fun.
I know at least 2 other Audi drivers who have defected to Subaru. That's just from the North Texas Audi Group.