Just unearthed this recent video of the FIA conducting crash tests on two different strength canopies.
http://vimeo.com/26098946
Not quite sure what to think! All the drivers know that when they step into the car there is a chance they might not be stepping out alive, is this just a belated knee-jerk reaction to the accidents of Henry Surtees and Felipe Massa? I'd be interested in seeing what sort of damage a suspension spring could do to one of those canopies...