Yes, it may be great to stop car-jacking etc, but what if you have an accident? I know that you can push it out from the inside, but what if you're knocked unconcious? Would the emergency services not be able to get you out cos of the supaglass preventing them breaking the glass from the outside?!

Seems a real risk to take if this is the case, but please correct me if I'm wrong.

 

They'll just cut the roof off

 

it does give way eventually something like 40 odd blows