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done a comparision on a 2004 Golf Gttdi an 2004 Vrs
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the 0-60 are both the same 9.6 seconds top speed max speed is 127
power powered by 130 bhp @ 4000 rpm with both torque set at 288ftlb (310Nm)
the golf is around 70kgs lighter so has a better power to weight ratio.
the only real differences are in new price and insurance groups golf was £4k dearer and 4 insurance groups higher
if his golf isnt as fast as the fabia ether the fabias been modified or something is wrong with the golf. lots of common problems with the VAG diesels losing power most are easy sorted thou - dirty MAF, burst vac pipe etc