In Carrera 4 the four-wheel drive can be switched off: Quotation: Our colleagues […] have also returned a wet trick to them by Porsche engineers — a sort of hidden feature of this new PDK transmission. By pulling up on the hand brake just one notch it’s not the parking brake that comes on but what this Porsche actually does is disengage the front axle. Thereby turning the 997 (with a wink and nod) into a rear-wheel drive doughnut maker. So you only have to use the handbrake a “knabe” Is this a “secret trick” or is something like that in the user manual? Can’t look right now, because I don’t have a 997