I haven't seen an adequate tow vehicle in any of the video's or pictures. That narrow and tall trailer doesn't appear to be right for the job either... just counting the lug nuts convinces me it's axles are not weight rated for this, and I'd have expected a little more meat(steel) at the tongue. I would bet on the insurance carrier bailing out on this accident, at least in the USA. IDK how hard Germany would handle this, but I'd be expecting some overweight tickets and full responsibility for the cleanup to fall on the tow vehicle driver/owner.Probably on an open trailer because it is so heavy. That car was armored, in fact you can see a gun port and the configuration of the flat windshield, so I would expect the car to be 10k pounds at least... maybe a lot more. Finding an enclosed trailer to handle that weight and fit the car width might be tough in Europe... I don't know.
Of course, that brings up if the whole rig (truck and trailer) were up for the job. I would expect a gooseneck trailer and a dually truck to haul a very heavy and very expensive car around.