The Caterpillar M316D Wheeled Excavator in 1:50th scale was re-released by Diecast Masters in 2016 with #85171 in their "Core Classics Series".
When end 2015 Diecast Masters took over the Caterpillar Licensee from Norscot, who produced the Caterpillar M316D Wheeled Excavator in 2007 under #55171, it was in 2016 directly re-released within the new Diecast "Core Classics Series".
Apart from Bob the driver and the Diecast Masters "Core Classic" cardboard packaging, nothing else has been added or changed to the original Norscot scale model.