Glad you are OK. Cars can be fixed or replaced, people much less so.
I'm not surprised it's un-driveable if the air bags deployed. You must have hit fairly hard for that to happen, and I wouldn't be at all surprised if the shock sensor that triggers the airbag doesn't also kill the solenoids in the pack too. It's exactly what you'd want to happen.
Knowing the airbags have triggered would suggest to me it is going to be very expensive. In itself this doesn't cause it to be a write off, but it's an indicator on regular cars, they are pretty destructive to the interior of the car. It sounds like the "smart" airbags did their job and only the required ones fired, so that's good.
I'd also expect bent suspension components even though the wheel looks undamaged. There's not much clearance in front of the wheel in a Model S.
Did the driver's side fender escape damage? What about the passenger door and roof pillars?
Personally I'd half hope it was a total loss, in my mind the airbags do it for me. I think of airbags as the last chance saloon, and I'm sure technically they and the surrounding interior bits can be replaced, psychologically I'd feel slightly nervous driving a car when they had gone off due to impact. Would you buy a used car knowing the airbags had been triggered at some point due to an accident?
On the plus side if you do get a replacement, the front collision avoidance the new autopilot cars have may prove useful :tongue: (sorry I couldn't resist :redface
One way or the other I'm sure you get it all sorted, at the end of the day its only some metal plastic and glass.
Simon