The M60 series of tanks was part of an evolution that began in the closing days of World War II. The tanks steadily improved and soldiered on, in their final form, until the advent of the M1 Abrams.

Just how far can you soup up a tank from the 1960s? The M60 Patton was the mainstay of the U.S tank fleet in the 1960s and 1970s, before being replaced by the M1 Abrams tank currently in service.

Technology, in all its forms, is a very fickle thing. So many of us are desperate to keep up with the latest upgrades, even if they're only minor enhancements to iterations that came before. If only ...