I have no dout a 1.8T could keep up with a R32 in a straight line but as soon as there both on a track or round a few corners the combination of a 3.2L V6 and 4wd would definitely leave a fwd 1.8T anyday
But saying this i drive a 2.slow and i'm happy with my 115bhp so what do i know!
I remember arguing in offtopic section about this, about a 1.8t and a vr6 both running at 260bhp, end result was yeah the r32 gets a better luanch which allows it to just out do the 1.8T on the strip, however on a track the 1.8T is quicker due to the 60-100 times out the bends giving it an edge in lap times by a few seconds.
TBH, R32 is expensive, with all that cash you could go k04 easy on a 1.8T you buy (with money to spare), plus all the mods and remap, not exactly huge power or gains vs weight on r32. Yeah you don't have to deal with lag off the line and a rubbish luanch, but when it's moving give me a 1.8T all the way, unless you have very deep pockets then a twin turbo setup on the r32, which is porn.