I guess I didn’t make it clear when writing in a hurry! Appologies! I will correct it.
It is not a newer version of stinger. It is very different. For one thing the engine is totally new. It is dual thrust. If memory serves, stinger rotates. Sungur doesn’t.
Sungur is replacing stinger missiles in our inventory. It has a better motor. Better seeker. More range. More accurate.
Starting base was stinger. And that needed to be replaced with something better. Hence came Sungur. A more accomplished missile for low altitude air defence.
Okay, so you're saying it's a step up from legacy VSHORAD, not that Sungur is based on Stinger.