Know what you mean, Alvin, but the average car is much stronger that an a/c, has airbags all over and much bigger doors and much less fuel. Plus when an accident is imminent you hit the brakes to a stop you're not then going to rapidly accelerate in a downwards direction. I'd guess that most g/a accidents happen at t/o or ldg, by extension arond the 60-80kts area. Make that 80-100 mph in something resembling a citroen Dyane with large fuel tanks tucked nicely on each side, add a nasty x-wind, wet runway etc ...!
However, always look on the bright side; might never happen!