There is a briefing pack that was handed out to senior McLaren personnel prior to their arrival in Geneva for the launch of the 720S.

And in the bit where it deals with journalists asking how fast it goes, particularly in reference to lap times at places like the Nurburgring, the stock response is meant to be along the lines of, ‘when you get to drive it, you will find out for yourself.’

212mph McLaren 720S officially revealed

Now, I understand as well as any why McLaren doesn’t want to get into a numbers-based arms race over what’s quickest where, but at the same time in order to understand exactly what kind of proposition the 720S represents, some measure of its performance beyond a 0-124mph time is useful. So I asked a couple of McLaren people I know well to see if they would go off-message.