Mitsubishi didn't really stop making the diamante, but the diamante is a lesser known model made by the Mitsubishi company. The Diamante came out in 89-90 and they have been making them every year since, but many people haven't heard or seen many of them because there aren't really all that many produced. While I don't know if they plan on (and personally i hope they don't) discontinuing this model, I do know that they plan on having new ones out in 2012 and 2013 as well. After that we will just have to wait and see.
they stop making 2 stokes in 2010
This Year
2005
2005 was the last year
1965
2004
1964
the answer is 1998
1969
2003
1991
2002.