i thought i could take it at 30 but with the car being lowered around 110mm and being on ridiculously stiff springs it does kind of take it's toll on the wet handling characteristics, it's a 1.4 tdi remapped with a surprising amount of torque so it does like to spin it's wheels in the wet
Lol, school boy error. A supple car is a fast car. The suspension is why you crashed, when you rebuild it put back the original springs and dampers. I suspect you could easily take that roundabout at 30 then. It is a fun trade off, you want the lowest car with the least amount of roll, but the softest suspension you can get away with. Too soft and it'll wallow around like a yank tank. Stiff springs only work on a race track, the smoothest roads are still worse than the roughest race track.
Also, when it comes to diesels, unless you spend HUGE cash, all they are doing is turning up the fuel pump. It is a brute force way to increase power, it works but is very dirty.
That all said, since you're a VAG boy, low and slow is the way to go. Good luck with your rebuild, although I don't agree with that scene, I respect your right to do it and your car actually looked good.
252nm of torque in a car that weighs around 900kg through 175 tyres isn't a great combination to start with but on a dry B-road the car does come alive, sticks to road like s**t on a shovel. while rebuilding i'm going to raise the suspension up by 60mm to give me a dropped look but saving my sump from any damage