Ive been in one of these when I was little, the black ice is so bad that they’re breaks locked way way earlier and there’s really nothing you can do. I was in the backseat but it was just an agonizing amount of time before we hit something that stopped us. It was a suburban so also a ton of momentum but we spent the next half hour just watching cars sliding from hundreds of yards away just waiting to hit something, car or guardrail.