Doc John, I don't know if they are available in the UK but over here we use "All weather" type tires which makes swapping them around unnecessary.

Ed T back in the late 40s Kaiser invented pop out windshields. If stuck in a car and need to get out, you should be able to just kick the windshield and escape.
...she kicked out my windshield she hit me over the head
she cursed and cried and said I'd lied and wished that I was dead...