It’s at 260km/h on Hangar Straight that my internal monologue pipes up for the first time since leaving the pits. Who the hell do you think you are? Kevin Estre? Fair question. I have, by twisting one of four dials on the steering wheel through a solitary ‘click’, just adjusted the behaviour of the limited-slip differential of our Porsche 911 GT3 RS, in anticipation of entering one of Silverstone’s many committed right-handers. Specifically, I’ve requested a decrease in the locking effect during ‘coast’ (that is, off the throttle). This should provoke the car into rotating more freely during the trail-braking phase. As a result, it should be pointing out of the bend sooner, those magnesium front wheels all the straighter for maximum uncorking of the 386kW 4.0-litre flat six nestled behind me. It is, in theory, a sensible approach.
But here’s the thing: Estre, among the quickest of all Porsche’s superhuman works drivers, will tinker with controls on the yoke of his $1.3m 911 GT3 R because it can
