I think it(soft body dynamics) may be minimal in appearance. Check out the station wagon on the left, in new condition (well, new'ish lol). You can see the hood on the station wagon is a little ajar. Compared to this one where it seems it has smashed into some zombies because of the blood on the hood. The hood is a little more damaged and a little more ajar. There are probably a few varying degrees of damage I would assume. At least I believe that is zed blood on the hood, may just be really rusty lol but probably blood. So it's cool that blood splatter will be visible on vehicles. p.s. I really want to explore that crashed plane.