The General Dynamics 120S is an upgrade of the M60 tank. The 120 in the designation represents the 120mm smoothbore gun and the S stands for speed and survivability. The M60 part of the earlier M60-2000 designation is no longer considered relevant as so much of the MBT is new.
The 120S is a unique product that integrates the M1A1 120-mm turret, equipped with a 240X4 FLIR, onto a fully modernized M60 chassis.
It was proposed for Turkey, but they bought the Israeli Sabra instead to upgrade their M-60 fleet.
Blown up 200% view of Icons.
Icons are stock SPMBT M-60A1 and IPM1 icons; the M-60 Hulls were re-worked to take into account the fact that they'd get teh same powerplant treatment as the M1.