I got rear-ended by a Firebird going ~50mph, which then pushed me into a head on collision with an Acura Legend who should have been doing about 35 to my (???). The Firebird driver said she never even touched the brake, because she never saw me at all. This happened back in 92 or 93. The rear of the car was pushed in about a foot and a half, and the front was pushed up to the radiator support, and maybe 1" more. NONE of the glass broke, including the rear hatch. In fact, the tail light lenses were busted but the bulbs were still on. When the cops arrived and asked if my lights were on, I pointed at the car, and said "They still are, the turn signal is still on too." The chassis was pretty badly tweaked, and the passenger door had to be forced open, then wouldn't close anymore.
Bad part was I was only wearing the lap belt and I broke my nose on the steering wheel. We were going into a fast food drive thru and on that car I couldn't quite roll down the window with the shoulder belt on. I guess I have short arms or something. My wife hit her head on the dash because she didn't have the manual adjust 240 belt tight enough.
All in all I was impressed. The car looked like an accordion at first glance, but the more you looked at it the better it looked inside the cabin, where it mattered most. I still can't believe none of the windows broke.