....When going over about 130 mph (GPS not inaccurate speedo), the GTI feels a lot lighter and you have to realise that aerodynamically the Golf hatchback is at its 'comfort limit'. But she'll drive for hours literally at 125 mph - I've done it many times on the German unrestricted sections of autobahn and averaged 90 mph all day!
I would remap your brain and do some performance car driving courses before high speed testing on public roads.
I'd have to agree there Red, mine felt "light" on the road at GPS 130mph last euro trip. Totally different to the S4 which "squatted down" at anything over 120+.
By the way, 155mph is all the S4 is meant to do as its restricted....YEAH RIGHT! I'll have to see if I can find my GPs photo to the contrary....

My GTI is at least 10mph out at speeds over 120mph. You dont want to get caught at that speed on a UK road, looking at a lot of time off there bud.