one of the defining characteristics of a “tank” is the turret, this is true. but over the years the difanition of a “tank” has disolved, most people would see some armored machine of war and simply call it a tank. Armor, a big gun and some weels/treds and you got a tank, thats what it really comes down too now a days.
allthough the Jagpanther didnt have a turret it was one of the first " tanks" with if my memory serves me a reverse axel displacment set up, allowing the thing to pull a 180 in a shorter amount of time than most “tank” turrets took to rotate front to back.