[marco_polo]

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.

 

[marco_polo]

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.

In the dry, no difference in my opinion, as long as there’s a gauge of decent compound left.

In the wet, it’s a massive step-change in safety. You’re in a relatively lightweight car with relatively wide tyres, so it’s going to want to aquaplane at the best of times. Go down to 1.6mm and you’re asking for an exciting trip backwards through the weeds, from my bitter experience.

 

[marco_polo]

 

[marco_polo]

A Tire Rack video independent of tyre manufacturers, for the doubters: