Thought they had sorted this, seems not. I had a VW Passat that the electric handbrake Stuck twice.
You could not move the Car or get the brakes off. Called the A A man who said this was the most hated
call all roadside assistance men get. He told me all cars are liable to have this problem. I Sold the Car
some years ago, so not had the problem,my current car had a normal handbrake.
Point of possible interest the Toyota Avensis had a good idea, a winding handle in the boot that wound the brakes of manually if the electric brake stuck. Only problem, was you had no rear brakes till you wound them back on again.
But at least you could get the car moved to a safer place if the brakes stuck.