Moose or Elks don't 'bounce over the top' on a small vehicle. They crush it, rip the roof off, or go through it. It may depend on antlers, angles, speed, and so on.

I've tried to pick the least graphic images possible:

http://img.radio-canada.ca/2015/08/09/635x357/150809_kr04b_v... from http://ici.radio-canada.ca/regions/saguenay-lac/2015/08/09/0... -- which ended up killing the two occupants of the car.

This one is interesting because you may very well hit the moose facing forwards: http://www.snopes.com/photos/accident/moose.asp

I don't think there is much to be gained in terms of safety. Let's not forget that while you may have large moose, there's a range where they can still be much smaller while growing and still damage smaller cars fairly easily.