OK, let me state up front that the perk is necessary. Simply because of it's speed. The drat thing is 10 MPH faster than any other effective tank in game. If it did not have that low perk price, it would be the next Zergrush tank, supplanting the T-34/76. The gun is about where I thought it would be (under 1500m and it just surpasses the performance of the 75mm on the Panzer IV H). It's quick, has a decent gun (under 1500m), and the armor should shrug off most shots taken over 1500m by the 75mm KwK 40 L/48 of the Panzer IV (The only effective non perked tank in game). The T-34/76, although useful, is not as effective as a tank, simply because of the glacial reload time of it's main gun. It is best used as an ambush tank, or Zerging towns/bases. The perk of the T-34/85 is necessary, otherwise usage of the Panzer, and T-34/76, will be nonexistent.
[hijack]I do however have issue with the perk price of the M4, and/or the Tiger I. The perk price needs to be evened out, either the M4 perk price needs to be doubled, or the Tiger I's price needs to be halved(along with a more realistic damage model against bombs, HINT HINT Hitech). This will better align weapon and armor effectiveness with K/D, and usage rates.[/hijack]