A6.
I drive an A4 Quattro. My very good friend had a 330i. We both preferred driving my car. I'm not a huge fan of BMW, but if it were a better deal I'd admit it.
As far as used and repair $$$ ... remember that if you choose a A6 2.7t you may be looking at replacing the turbo someday. My $.02 ... by a very low mileage turbo, or a non-turbo, or better still a CPO car from an Audi dealer so any repair issues are covered.
edit: definitely invest in winter wheel and snow tires too!
I drive an A4 Quattro. My very good friend had a 330i. We both preferred driving my car. I'm not a huge fan of BMW, but if it were a better deal I'd admit it.
As far as used and repair $$$ ... remember that if you choose a A6 2.7t you may be looking at replacing the turbo someday. My $.02 ... by a very low mileage turbo, or a non-turbo, or better still a CPO car from an Audi dealer so any repair issues are covered.
edit: definitely invest in winter wheel and snow tires too!