Well MOT in Iceland are rather strict and especially on heavily modified cars. Speaking of the 44 inch tires, they are legal on street cars and up to the 54 inch, but there are very strict rules to so much modified cars. I think that 54 inch is the biggest tires we are using under a truck in Iceland, at the moment but you never know when they go bigger. You need fairly big tires under a Ford F350 fully modified for snow driving in the Icelandic mountains in the winter. As you probably know we drive on top of the snow rather than driving through it and that calls for a big tires to get the car floating on top of the snow. I will maybe start a new thread her in the forum to show you some heavily modified Icelandic Patrols, if you guys are interested.