I changed my 64 reg GTD in white with santiagos, 3 months ago for a Lapiz 3door manual Golf R with cadiz wheels. Best move ever there is really no comparison in performance and sound between the two.
I was getting about 350-400 out of a tank with my GTD and now getting about 300 out of my R but I do tend to drive my R harder than the GTD purely because I cannot help myself, just love the sound of the exhaust with the flaps open!.Never regret the move from diesel to petrol and enjoy the drive a lot more so will never see me going back to oil burners again, but the GTD is still a good warm hatch.