Advanced Vehicle Help

I’m a newbie to Unreal Engine, and there’s a specific problem that I can’t seem to find the answer to. Basically, if you start a project with the Advanced Vehicle template, and then move the car really high up in the air, and press play, the car will slowly tilt forwards as it falls. The car rotates even when it is only under the influence of gravity. Why does this occur? As far as I can tell, most things maintain a given orientation as they fall. This is true for the car in the regular Vehicle template, as well. What makes the Advanced Vehicle different? And is there a way to avoid this behavior?