1. Tanks in WW2
Mitchell

2. Tanks in WW1 Very slow. Extremely loud and hot inside the tank.
Barley any air circulation.
Continuously stuck in muds/water/terrain.
Limited vision to outside the tank.
Not very bullet proof and often weak against other cannons and tanks.
Very flat unprotected design.
Has to stop to shoot large ammunition.
Used gasoline and normally explodes when gas fumes caught muzzle sparks from guns.

3. Tanks in WW2 More horsepower delivers more speed.
Faster (more traction)
Rotating turrets, can defend themselves from side
attacks.
Developed a way to attack while on the move instead of stopping originally.
Using diesel for more power and it burns slower than gasoline and is less hazardous.
Slopped designed armour that can deflect bullets off on an angle.
More absorbent armour shells
More heavy powered ammunition which shoots up to 105mm.
Increased muzzle velocities for greater armour penetration.
Sleeker designs.
Some can maneuver on water mm round>