Different cars for different people.
XR6T, nice cruisey family sedan or ute, has a bit of poke (remember the serious mods have to wait untill the warranty ends), handle surprisingly good, cheper for insurance etc, and are comfortable with a good looking interier.
34GTT feels faster maybe because its lighter, handles better as it has better feedback for the driver, good potential for mods, but has the usual import insurance/parts probs.
Drive both and buy what you wont