They call it heatstroke for a reason. Older (and younger) people can die of it way faster than probably yourself, if you are in fit condition, that is.
https://en.wikipedia.org/wiki/Heat_stroke
Blaming the car is just asinine though. There are plenty of ways out that don't involve feats of strength (breaking car glass is not trivial). The guy wasn't fit to be driving alone if he didn't have the mental faculties to remember that he is driving a targa top car, even if he forgot the handles on the floor. The only fixed roof c6s are z06s and zr-1s. The picture is neither of those.