The M60 was initially introduced in 1960 and often incorrectly referred to as a Patton. The M60 resembled the M48 because it was based on the M48 but with some significant alterations and improvements. M60 has a 105mm Main Gun while the M48’s was 90mm and the front slope was straight compared to the M48’s rounded front plus other modifications. The M60 was the last U.S. tank to use homogenous steel as well as an escape hatch in the floor for the driver.