I just had this happen actually, a couple months ago...right before Chevy recalled those ignition switches. Accident, 2 months later I receive my recall notice. Anyway, 55mph, no brakes or steering (or airbags), car flipped. I was lucky, and I think it was because the tree stopped the roll, taking the brunt of the impact at the trunk.
Exact blow by blow memory? Ridiculous. Doesn't happen. Memory is not a tape recorder and I'm educated enough to know not to push it. False memories are very real. A few points.
-Everything stopped and I was in my seatbelt. Sideways. Without a scratch. Brain kicked into supercharge at that point.
-Car doors are heavy. Standing in a car while it's on its side, pushing up on the passenger door doesn't work. I'm average on physical prowess and not short, but it took two bystanders to help me out through that passenger door. Alt plan: I was going to go out through the trunk to get out...window was smashed already and it appeared to be an exit.
-Maybe it's just me, but I kept thinking fiery inferno so I turned off the ignition first thing. I was told after the fact that this saved the engine (for all the good it did the rest of the car). Engines that otherwise survive accidents are blown by the ignition being left on. Common cause of engine damage in accidents, according to My Mechanic Uncle.
-Memory (such as it is): needed to stop, couldn't, brake taps, nothing, more brakes, more nothing, why can't I stop?, brakes, nothing, oh shit, tried to turn the wheel a little bit to avoid impact with another car by swerving into the shoulder, the wheel WRENCHED sideways sending the car on a 90degree spin toward the ditch, airborne feeling, the world tilts, OMG-GO-LIMP-YOU-IDIOT, arms/legs do the best to let go of steering wheel (no idea if i did), IMPACT, slide, tree stops roll, blink, take stock. Oh shit, will the car explode now? Turn off engine...remove AWESOME seatbelt then work on getting out, cuz, fiery explosion images from every bad Hollywood movie are dancing in my head.
No fire explosion happened. Cop arrives and shouts at the wrecked car only to have me walk up and hand him my license. He proceeds to ask if my cruise controlled at 55 vehicle was speeding...no less than 17 times. Including flashing the radar gun in front of my face for a reaction. Asshole.
There's one perspective for you, such as it is.