Sp Chrono not worth the cost, imo. As for durability, well the GTS I drove at the PEC last November was still in daily use this June, and according to the instructor, not had any faults, apart from surround view playing up.Wing Commander wrote: ↑Wed Sep 06, 2017 6:02 pm
I haven't used Launch Control on my car either yet, but it was very dramatic on the PEC's Panamera!
Regarding being brutal on the transmission, I gather that Porsche are confident that the oily bits are more than up to it. It can't be that brutal, as it 'only' reduces 0-60 times by 0.2 seconds!? And there's a video somewhere of a guy using LC on a 911 something like 100 times consecutively with apparently no ill effects on the car.
As for the Compass, I regret not adding it, from memory, it adds altitude, temperature as well as a digital time display, useful in Euroland, and would stop Mrs B. asking me one of those things constantly.