Not just BMW. I've been watching (and enjoying) Mat Armstrong's youtube videos where he restores crash damaged luxury cars, one of them was a Lamborghini Revuelo. The car's battery was completely intact, but the safety fuse blew up in the BMS and despite replacing the entire module, the car wouldn't talk to the battery and wouldn't even start. Eventually he had to buy an entire 30K battery, and even then, the car wouldn't start because the car was so new Lamborghini themselves still didn't have the diagnostics tool to clear the crash code.

PHEVs are great, I've driven two in the past 6 years, but in most cases, you're one airbag deployment away from a very, costly repair and in 99% of cases, a totaled car.

Interestingly I’ve seen YouTubers replace the fuse in a Tesla for about £40 and a few hours of labour (it’s under the rear seats). Maybe something they’re doing right.