My 90 240 was involved in a front end collision (my 240 @ 50 mph into his Chevvy Caprice going backwards @ at estimated 35 mph). My left front corner took the hit and the airbag deployed. Left front fender, grille, headlamp, hood shock tower/strut assy (pushed rearward 2 inches). I took $3250 and bought the car for $150 salvage, pulled the engine and transplanted into a 90 240 w/ a blown B230 for my nephews/niece and parted the remainder for $1000.

No glass broken, any , nada, zip, zilch...

Same when I rolled a 78 245 nine times in a Beltway crash in 1988. No glass broken at all. Roof came down 1/2 inch but no glass broken at all.

Not all front end impacts involve glass damage, only the later models that have the windshield glass as a part of th airbag system (IE: Glass is designed to break to absorb some of the bag deployment). Volvo used same glass from 75 to 93, no change in thickness or design so it was never intended to break on bag deployment. Same with side glass, no change in 17 years.