looks good.. but not as good as : http://zattevrienden.realroot.be/depanneren.htm
My mom can't really swim either! Like, I'm a pretty strong swimmer but..its just getting her out of the car and up to surface. Freaks me out so much.
And if the windows are up you have to wait until the whole car fills with water before opening the doors. So terrifying.
I'd most certianly smashed the windows, hold my breath, let the water fill, and get outta there. I'd never go out like that.
You're supposed to roll your window down. If you have electric windows, you can request a tiny glass hammer from your insurance company to keep in your glove compartment. It lets the water in slowly.
If you smashed the windows when you're already underwater you'd never get out because the water pressure coming in would make it impossible until it was equal.
I'd let it fill.