Like the post title says,

What years are of the 1G , 2G, 3G, and 5G, I saw a post where 4G was concept or test car and didnt make it to production.

 

I believe the 1st gen was 90-94. Was 90 the first year? Well, the 2nd gen is 95-99, and 3rd gen is 00-04. I guess you are saying the 05 is the 5th gen? I always assumed it was the 4th gen. I don't know anything about a concept.

 

89-94 is 1g
95-99 is 2g
00-05 is 3g
06+ is 4g

n prolly around 09 is gonna be 5g lol, unless they discontinue the Eclipse like they did wit the 3kgt