Handling: The Porsche wins.
Playability: the BMWs win, by far(getting cars into/out of drifts/oversteer/trouble fun) Every BMW has DSC you can switch off. Every M BMW has a limited slip diff as standard. The Cayman and 997(S) don't
When the systems switched off in the Porkers they are switched on again when touching the brakes for instance(just the way to adjust the car into a bend)
THAT SUCKS HEAVILY