The TV commentators kept making a point in their coverage of the British GP that the wet tyres "clear 60 litres of water per second".
I'm guessing this figure is calculated simply by tyre footprint x tread depth. Tyre footprint will remain the same but the tyre is rotating so a new series of 'empty' grooves come into play and are constantly contributing to this clearance of water?
Is the above correct?
So, at what speed is this '60 litre' figure reached? At 200mph, which the car is capable of, but is unrealistic (impossible?) in those wet conditions, or an average speed of what we would expect to see over a wet race distance? Is it just some clever tyre manufacturer stat or is this a realistic figure of how much water each corner of the car is shifting?