If you're in CO a BT 1.8t is going to be a lot more fun than the v8. I'd do it. Unless you're looking for stupid amounts of power, I'd stick with your B6. If you want to make some insane build, I'd drop the B6 and pick up a B5 S4. Thats just my opinion though, having owned a 2.7tt and currently driving a 1.8t.