Fuck indeed. Someone isn't getting a wink of sleep tonight.
I've been on the wrong end of an accident where something similar happened. Luckily the dual-rear wheels landed on the bonnet of one of the other cars, before a glancing blow off the top corner of the windscreen of a Royal Mail truck behind it deflected them into a field. I had the misfortune to run over the remains of the hub. Split the front alloy clean in two, which was fun* in the outside lane of a packed M6 at 70mph, then ripped the fuel cooler off and bent the rear alloy, before I fired it through the radiator of the Passat behind.