“If the Nazis had focused on the Panther and the Panzer IV and their variants, the war would’ve gone a lot differently”
Would have gone exactly the same. War isn’t tank on tank dueling like knights. It is Bombers causing airbattles that brought up the Luftwaffe to be destroyed by Mustangs and Thunderbolts. Then those thunderbolts run wild because there isn’t a luftwaffe to protect them. And then our side can mass artillery and supplies anywhere we choose, and they cant run a donkey cart to market without getting attacked by jabos.
Ask any german,, the P-47 was their demise.
If the Germans could have quadrupled the number of panthers they made, that would have just been more P-47 and Tempest targets. The object lesson is the minute the weather broke over the Battle of the Bulge, the Germans instantly were helpless and cut to pieces from the air onslaught.
No fantasy tank could have saved them unless it had all aspect sidewinders mounted.
Elsewhere, someone posted that when the Tigers (or I imagine ant tank) was caught on a paved road, the P-47s flew low and behind and bounced their 50 cals off the pavement into the thin 1" plating underneath and took them out that way. Seems like an Urban Legend, but you never know.