Given the damage that this new version of hellfire is supposed to do, I find it hard to believe that something the size and energy of the hellfire (even a low collat damage version) is capable of it. I think the hellfire is too large, and would have too much kinetic energy at point of impact to only crack a windscreen (as one comment has it). I'm going for a Viper Strike derived munition.
It is a hellfire based ordnance. 100lbs traveling a couple hundred mph/kph will make a hole in most automobiles and squishy things inside. If it does have a 3 lbs explosive then it is to make a high speed "shotgun effect". Ball bearings moving at several hundred mph/kph will make holes in most automobiles and the squishy things inside also.