Racing tyres: they’re black and round and stick to the ground. And that, by rights, should be all we need to say on the matter.

At Thruxton circuit, however, tyres were one of the hottest topics during this weekend’s Dunlop MSA British Touring Car Championship event.

A combination of an abrasive track surface, high average lap speed, unforgiving kerbs and high ambient temperatures (for Saturday’s qualifying sessions at least) place a toll on the rubber that’s peculiar to the Hampshire speedbowl.

Dunlop supplies the control tyre for the BTCC, and has three dry-weather, slick compounds of Sport Maxx cover to choose from: soft, medium and hard. All three compounds are derived from the same construction.