T72 vs T60

May late Cold War Soviet tank line up.

Two different T62 tanks flanking a T72 tank.

Roco M60A1 with a T72.  You can see how big the M60 series was.

Bigger allows more crew comfort, thicker armor, more ammo storage, and a better hull down position.

Smaller means harder to see, and harder to hit.  Everything in tank design is a trade off.