Its hard to crash change a modern gearbox because the internals have been made to make the smoothest change possible which usually involves putting in safe gaurds making it harder to put in it low gears at silly speeds and reverse by accident. This is fine in normal use but makes trying to crash is near impossible. FWD cars also suffer from a less precise linkage which again makes it harder to feel the gears and even more difficult to do.
Coming back from York last Saturday my washers froze up so I ended up slowing down to 30 and throwing bottled water over the windscreen to try and clear it. That was fun, On the motorway at 11:30PM when you can't see the lines on the road for snow, brakes are usless and you cant see out of the windscreen

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