I’m not a fervent computer gamer, but I appreciate the increasingly blurred line between virtual reality and proper, flesh-and-metal reality.

That doesn’t prevent a tiny tremor of concern passing through me when Andy Palmer, Nissan’s chief planning officer, tells me that his only previous experience of the Goodwood hill has been via the (admittedly very accurate) rendering of the route that exists on Gran Turismo 6.

This worries me because I am sitting in the passenger seat of a definitely real and extremely rare Nissan GT-R, which Palmer is about to drive up the course at high speed. What’s more, those tree trunks off the start line and those straw bales at Molecomb and that flint wall further up are definitely, emphatically not made of computer pixels…