Are any rear car windows laminated

Quote by brother-uwe
What if you try to hit a sturdy welding wire through it. Then you have a channel through which you can thread the saw wire.

Sent from my apple device.

Wire was threaded in from the side, we then saw massive amounts of muscle on the first piece of "foam" for over an hour and only managed a few millimeters - we won't get any further with that. The stuff reminds me of my climbing holds, hard as stone but relatively light / airy.

The place is absolutely inaccessible, you can see the foam lump about 1m away through a slit. And then there are at least 4 more lumps of foam that need to be sawed through.

Does anyone still have an idea what to do? Does the foam melt in the heat? What if I apply power to the wire, e.g. briefly connect a car battery. Or is the boat more likely to burn down?

Destroying the bottom completely by sawing the top shell, there is no way I will!