Not only SU-76I, but they made SU-85I too

Is Katyusha holding a Marder III?

It inspired the Italian Semovente da 75/18, too.

Still, I never thought this assault gun sans tank destroyer when it got the KwK 40 was the one accompanying assault troops when storming a position instead of Pz IV's (speaking of which, I thought the Pz IV was cheaper than the StuG III)

ezekill said:

Still, I never thought this assault gun sans tank destroyer when it got the KwK 40 was the one accompanying assault troops when storming a position instead of Pz IV's (speaking of which, I thought the Pz IV was cheaper than the StuG III)

Pz IV chassis is larger and more complex to manufacture, and taking out the rotating turret reduces costs by a significant margin.

ezekill said:

Still, I never thought this assault gun sans tank destroyer when it got the KwK 40 was the one accompanying assault troops when storming a position instead of Pz IV's (speaking of which, I thought the Pz IV was cheaper than the StuG III)

The rotating turret is a very complex feature; fitting the gun in a fixed casemates allows for a more economical and also quicker construction.

Added to "Translation Difficulty" pool due to the absurdly small text in multiple areas.