I also drove the 3.2 and 2.0T in succession a few months back.
The 2.0T I thought was pretty nippy, but you had to rev it; just pootling around it didn't feel particularly special but opening it up out of a roundabout onto a good stretch of dual carriageway felt pretty good.
The 3.2 though was noticeably stronger. Even though the car was heavier (due I presume to bigger engine and quattro, the 2.0 was fwd only) throttle response was sharper, acceleration off the line was fab, and having bags of torque means it "feels" like its tugging at the reigns. /ubbthreads/images/graemlins/cool.gif
It was more sure-footed when powering around roundabouts and flat out in 2nd, 3rd, 4th just swayed me away from the 2.0T.
I'm very glad I did to be honest, and being a 3.2 you can't really grumble about economy. If you want economy, go for a lower powered car or a deisel!
My Brother had a Boxster S a while back, and although the Porsche was a quicker car, it wasn't that much quicker; and if you want it, you can have the same thrill factor in the Audi, which is only hampered by its extra weight - but for the practicality and boot its worth the sacrifice /ubbthreads/images/graemlins/wink.gif
I do mostly in-traffic in-town driving, my daily commute from home to office being only 12 miles round trip. Consequently my mpg is hovering around the 21 mark. But its no big deal, if I had a much larger distance to commute I might have been more concerned with mpg and stuck with the 2.0 but it would probably still balance out the same so what the hell, I just drive it sensibly most of the time and enjoy the odd surge "where appropriate".
Before I decided on the A3 I also considered the RX-8, which apparently has, for not quite as good performance, an average mpg around 17-18, so I'm better off than I might have been... /ubbthreads/images/graemlins/groovy.gif