What is the most powerful tank in the world?

Currently it is the Type 99KM, with a 155mm cannon. In the time of World War II, it was the Tiger Tank I, with an 88mm gun.

AnswerTwo tanks vie for the title of Most Powerful Tank. One is the M1 Abrams. The other is the Type 99KM. The type 99KM has a 2100 horsepower engine, and a max speed of 80 Km/H, whereas the M1 Abrams with a 1500 horsepower engine, with a max speed of 60 Km/H. Only 200 Types 99KMs have been made. Only one is just 1.9 million US dollars. The Type 99KM has a JD-4-active laser defence system, a unique feature, using it to dazzle gunners. The full weight of the Type 99KM is a hefty weight of 75 Tons, with precision missiles and the barrel can also fire kinetic-energy-armor-piercing shells.