The Tiger II or Sdkfz. 182 (Sdkfz. 267 / Sdkfz. 268 for Command vehicles), also known as the King Tiger (officially Panzerkampfwagen Tiger Ausf. H/B, P), was delivered to the German Wehrmacht starting in October 1943 and represented one of the most advanced tank designs of World War II. A total of 492 units were produced, with the majority manufactured by Henschel and Krupp. The Tiger II combined the robust armor of its predecessor, the Tiger I, with sloped frontal armor up to 185 mm thick and the powerful 8.8-cm KwK 43 L/71 gun, capable of destroying almost any Allied tank at long range. Weighing 70 tons, with a top speed of 38 km/h (road) and a range of up to 170 km, it was prone to mechanical failures and fuel shortages, limiting its strategic effectiveness.