They can't. This class of vehicle isn't legal in the European Union it's why the cybertruck isn't legal (there's a whole bunch of other problems with it as well but the weight limit is a major problem). If you wanted anyway just to have it on private property you're out to luck. Someone did train import to cybertruck into the UK and had it confiscated.

I think there is a classification for vehicle that you can get if it's something like a race car or rally car but it can't be driven on the road and has to be driven around on a truck to move it.