So after my Saab 9000 died, I got my little Audi, and I have been loving itt since. I've put a couple of thousand miles on it, and I love it. Quattro has actually saved my life, and the car is definitely one of the most solid feeling cars that I've ever been in. I love how this car has attracted a cult of modders, if I ever need anything, I just go on the forums and do the diy, the 1.8t is vital, and the automatic just kills the whole experience because turbo+manual+quattro= some slightly illegal amazingness.
the 1.8t engine can be pushed to over 300 hp with a couple thousand dollars tops, solidity of the quattro, and the i love the understated beauty of this car.
More stock power (already addressed), improve the gearing, and put on a more aggressive rear diff (oversteer please) and keep making em like this