I remember bringing a reconditioned London Taxi engine back from England to Mandello for an Italian friend. As usual I came through Switzerland as the van was empty (apart from engine). At the Swiss/Italian border the Swiss officials were baffled as to what duty to impose and kept asking where the rest of the vehicle was
Had to leave engine on pallet with them to be sorted by my Italian friend the following day. Fortunately the border was not too far from Mandello.