I agree, my 99 csvt could take my friends a4 quattro w/ 1 bar chip. Quattro is great for handling in traction-limited conditions, but its a piggie in the drags. (extra weight plus driveline loss).
Note that the new 1.8T has been factory updated with a faster spooling turbo, bigger injectors, larger manifold, variable cam timing, and drive by wire throttle.
Fastest 1.8T's seem to be the jetta and gti's, they have transverse engine layout(less driveline loss than the VW/AUDI longitudinal platform), lightest weight (2800 lbs I think, vs 3200-3300 for a passat, maybe 3500 for a A4 w/quattro).
Chip alone on a new 1.8t (AWW, AUG engine codes) is supposed to be 205-210 crank hp, and 245 ft/lbs.
low-mid 14's in the quarter, low 6's 0-60.
I believe this is where SVT 2 1.8T is operating at.....Would make an interesting race.
