Mate, a tdi pd 150 would really give the 150 Gti a run for the money and its accelerating sligtly faster due to the masive torque and still get double the mpg. I drive a chipped 2.5 tdi audi a4 and i tell you ,its a wolf in sheeps clothes and i often humiliate/surprise many so called sports cars ! Go and test a good 150 pd and you wont be disapointed.