I’ve watched the Eurofighter whipping through the air at countless air shows, with commentators explaining that its shape is intrinsically unstable. This makes it more manoeuvrable, but without the super-fast flight computers it would be impossible to fly.

I think that car companies could be thinking along similar lines. Electronics, specifically ESP systems, are now so advanced that cars (even humble ones) can be set up to be more agile, leaving stability systems to replace the safety margin previously engineered into the chassis.

Why? Because I've just been testing a new Golf at the MIRA test facility. On the dry circuit it proved impressively willing to change direction, with little understeer. No complaints there.

But on the wet circuit something rather odd happened. Brushing the brakes mid corner, or even backing off the throttle, and the Golf tightened its line quite sharply. Of course this isn’t a problem, because ESP is standard across the range, and is so quick-acting that it keeps the Golf on line.