Give it a looksie, Stefano. There are some scary Vette stories of those Firestone 500 spare tires simply grenading in 1973-75 Corvette spare tire wells even with no air pressure in them. One recent one ripped the rear quarters and deck open. Eventually the defective belts give way and come apart like a giant ball of rubber bands snapping, only these are steel cable not rayon.
I don't mean to hijack, but go here and see one of my NOS tires ripping apart with no air in it three months ago.
https://www.yenko.net/ubbthreads/ubbt...pics/539528/26
and here's one from a Corvette forum:
http://www.corvetteforum.com/forums/...-recalled.html