Three teenagers were killed when their car skidded off the road in southern France, went through a wall and crashed upside down in a private pool, trapping them inside.
The vehicle was a similar size to the pool and the teenagers - aged 14, 15 and 19 - were unable to open the doors and drowned.
Sorry if the link is not allowed, but after reading about a family drowning after skidding off a slippery road into a large pond and drowning because they couldn’t get the doors open, I bought two of these. A spring loaded hardened steel tip, you just press against the glass and it shatters your door window so you can escape. Also has a seatbelt cutter.
https://resqme.com/product/resqme/