The M60-2000, or 120S, is modernized M60 Patton main battle tank marketed for export by General Dynamics Land Systems. The development of the M60-2000 was primarily due to thousands of M60 MBTs in service with many nations unable to afford a sufficient force of more modern main battle tanks. GDLS devised the M60-2000 upgrade, offering many features of the M1A1 Abrams to existing M60 users at a reduced cost.
So in short its an attempt to convert M60 into M60!