If you try to register a tank, you’ll run into a twisted mess of width and weight regulations, but there are plenty of used examples out there that are already registered, with these starting from as little as £4,000.

True, driving a tank on the road still requires a category H licence, but amazingly anyone with a full UK car licence is entitled to a provisional H licence. This permits you to drive a road-legal tank as long as you display L plates and are accompanied by a someone with a full H licence. Or if your tank has only one seat, you can forego the qualified passenger.

Sofa car