Huh, some reason I thought the Leopard 2 initially came out a lot later than it did, but apparently it was 1979. Therin lies the problem with me relying on my own memory. I had it at 1989 or so. Only off by ten years, right?? LOL.
http://en.wikipedia.org/wiki/Leopard_2
M1-Abrams was 1980, and I'd remembered that one correctly. The two designs deriving from MBT70 essentially came out at about the same exact time.
http://en.wikipedia.org/wiki/M1_Abrams
On the other hand, the Leapard 1 was the very best of its era of tanks. The M-60 which was the USA's
main MBT, really wasn't. Middle of the pack at best.
Leopard 1 --> Leopard 2 = Good progressive move forward in tech and design.
M-60 --> M1 Abrams = A giant leap forward!! <---That was my main point. Also, that the Abrams was the first instance that I am aware of the USA's MBT was among the very best in the world, if not initially the #1 MBT in its own right.
Both of them are top-notch tanks and IMHO belong in any all-time top 10 list.
Its all sortof wandering offtopic anyways.