Finally had some downtime and a day off to take my car for its first real inaugural drive up in the mountains, in this case the famed ACH (Angeles Crest Highway) seen in dozens of California based car review videos.
My overall driving impressions: I set the car more or less to 'maximum attack' settings (Sport Plus everything, throttle, suspension damping, ride height, etc) and the only real handicap is my car came with Pirelli Cinturato All Seasons rather than stickier summer P Zeros or Michelin Pilot Sport 4S which I would have preferred.
For a nearly 5000 lb car, it handled admirably, aided by all the performance options I specced (rear wheel steer, PDCC, rear PTV diff, etc) but I could definitely feel the weight of the car the longer the drive went, and my arms fatigued much faster versus driving my former 3400 lb 911 Turbo or 3000 lb Cayman GTS up the same route, and with the less sticky all seasons, I didn't push the car nearly as hard, altho the deceptive speed of an EV, I was still probably driving nearly as fast in terms of absolute speed in the tight mountain roads.
Overall it was a fun drive, but it also helped me to find out how much battery range was burned in a 60+ mile uphill/downhill fast mountain drive which will help me plan in later group drives with ICE powered performance cars. If the planned mountain route is too long I will have to really plan around the battery charge.