2.0 Cayman PDK
I'm South UK, and I consider my limit to be 3mm. Go beyond that, and the aquaplane resistance seems to fall off a cliff.
In the dry, no difference in my opinion, as long as there’s a gauge of decent compound left.I'm also South UK - Oxfordshire.
This is my first sports car, on other vehicles I've always pushed tyres close to the legal limit (when I was a teenager I went past the legal limit... but the tyres were the least of the issues with my old Rover Maestro!). Does that extra 1mm really make that much of a difference? This is a genuine question.