[Quote]For some reason, I really like this particular version. Shows how much the tank evolved since it first went into service in late 30's. Also shows the desperation of the Germans since by the end of the war, it was completely overmatched by Allied vehicles. ] quote
John;
I'd be a little circumspect about that "completely overmatched" !
This one has been around a long time, and surely will continue to go 'round! It's really all a matter of opinion.
By me and FWIW; Yes, the Pz IV was an "older" design (1935 - 36, which may, in the grand scheme of tank design make this a little "old"... But consider... Our US M1 Abrahms type base designs are a mere 50! and the type entered service 45 years ago!), but it was a solid, well-performing, reliable chassis to the end, and its later long 75 gun (the standard for G, H, and J) waaay overmatched those of the T34/76, KV../76, and all those standard Shermans w/ the dual-purpose 75 gun. And it's frontal armor actually did OK against the majority of tank weapons in service on the Allied side. (Bear in mind that almost NO tank side armor was actually good for most opposing tank guns) And the ergonomics of the IV (spacious inside and little conflicting of drivers, radio men and turret crew) made for a very efficient "fightable" interior compared to say, those famous T-34 and KV types, and on a par or better than our Sherman.
And, given that the Pz IV didn't "brew up" nearly as readily as did most Shermans or even the T-34, crews may well have taken some real comfort in their somewhat better chances in the IV.
So, obsolete, yes. Badly overmatched by what they most frequently encountered? Not so fast!
All that said, the IV-J was, in some important ways, a "retro" version! Perhaps the real apex of the design was the later IV-H, which still had the powered turret (J dropped that in peculiar (to me) favor of adding an extra gas-tank to increase its travel range.). Other J changes were mostly small simplifications envisioned to somehow speed up production (YES, those Germans were DESPERATE to get ANY tank into service). Dropping zimmerit was probably the real saving step when it comes to total labor and time...
Things like the J mesh floors and side-space covers (behind hull schurzen and over fenders) were just late factory responses to crew suggestions and didn't affect combat serviceability one way or another, far as I know... But neat stuff for a modeler!
I've long been major-curious as to whether the Germans actually attained any improvements in production-rate with these mods! You know, some real objective data showing that they, for example, gained a tank per month off the line, or some such...
Just, of course, my opinion!
Oh, and yes, I confess; I am a IV-fan, with a rather huge stash of IV kits!

But all those smallish wheels...

!
Cheers!
Bob