I think it's impossible, and only because OFP lacks that function...
Triggerhappy is on the right tracks, there's actually a script that utilizes a bit similar idea, but it's just for tipping cars over, and can't be used when player has sight of the car that is being tipped over...
What it does it creates a duplicate of the car you want to tip and drops (not drop[]) that duplicate car on top of the original car so that it tips over...
It works quite well, altough it's not 100% sure the car will tip over...
I think it's somewhere in the EdDepot, most likely made by General Barron (ok, who else
)...
But, for that thing Triggerhappy explained you would need two invisible objects with geometry LOD (and probably mass) and we all know what happens when two objects get too close each other in OFP...
The other either becomes orbital or there's 'some' shaking present...
Not to mention the sounds of car hitting a wall in 100km/h...