Alright, got some experience with the T23, and it now makes some income.
The higher Tiers seem to be more populated with heavy tanks than any of the other vehicle types.
The T-54 has a bunch of stats such as engine power, front hull armor and maneuverability that were never seen on a T-54 in reality. It's a small, overpowered UFO, and there were some stats from the Russian test server where there were 3x more T-54s than Panther IIs and Pershings combined...
There's also talk about the developers wanting to nerf the Pershing and P II because they get higher victory rates than the T-54. I'm pretty sure this game will become World of Soviet Tanks pretty soon... and World of Empty Battlefields not long after that when the players leave. Not a bright future for a game that's pretty good right now and only a few steps away from being awesome.