You need a diesel octavia vRS then.
Cheaper than all the other options, for what is essentially exactly the same car with an 'inferior' badge.
The diesel VRS has identical suspension to the petrol vRS. Plus petrol vRS handles just as good as the GTI, (iirc, On the performance car test track the vRS was 0.4 of a second slower than the GTI, which isnt bad considering the additional 100Kg of weight it carries) Whereas from what i read, the Golf GT TDI runs different suspension to the GTI.
looks lovely in white
lovely interior
I went in a friends diesel vRS and was pretty impressed(it was stage 2 mapped with DPF delete, aout 220Hp) and it went like sh!t off a shovel, whilst staying above 45mpg. that same road earlier in my own car at similar speeds i was below 20Mpg.