The Caterpillar AD45B Underground Mining Truck in 1:50th scale was released by Diecast Masters in 2016 with #85191c in their "Core Classics Series".
When end 2015 Diecast Masters took over the Caterpillar Licensee from Norscot, who produced the Caterpillar AD45B Underground Mining Truck in 2007 under #55191, it was in 2016 directly released within the new Diecast "Core Classics Series".
Apart from Bob the driver and the Diecast Masters "Core Classics" cardboard packaging, nothing else has been added or changed to the original Norscot scale model.