Even smaller animals do considerable damage to a vehicle travelling at speed.
Company I worked for in the mid-eighties had a fleet of Vauxhall Astra vans - my colleague was driving down the A3 to Portsmouth on a regular run, one Saturday/Sunday at 2am (and TBH he was most likely hurtling along at a fair lick, you could wind those vans up to over 110mph if you were feeling particularly brave/foolhardy), when suddenly a fox came running across the dual-carriageway.
Well, in the collision that followed, the fox was obviously quite severely mangled, but the front of the van was demolished.
The whole of the area between the headlights was mainly of plastic construction and had managed to collapse/explode itself through the radiator and surrounding hoses etc.
The van had to be 'recovered' back to St Albans and when we saw it in the daylight the following day it was a right blood-covered mess of a mixture of bits of fox and plastic.