Here's what I'm thinking, on top of Qweipr's specifications,
-ECM System with dedicated Vehicle engineer, who also helps manage the engines. The ECM system can jam infantry based weapons, but due to power restrictions cannot jam anything more than that. Jams Infrared signals and radar, usually by blinding the guidance systems.
-Active Protection system, which works in a manner similar to a shotgun. Always disabled due to the danger to nearby infantry. Will fire on top-attack ordnace regardless. Not very effective.
-Two-internal combustion engines of some form, one per track
-Composite armor with sloped/peaked front; Reflective coat, 100mm RHA, Rubber Disturber, Graphite coated Ceramic Disruptor, Tungsten weave reinforcement, then steel structure and spall liner. This part is technobabble, so don't worry about having to simulate it.
--First layer under the paint is literally a reflective coating. Effective, but will burn off after sustained heat.
--All mounted in modular armor blocks akin to that of the Merkava, which is the main real-world inspiration.
-Engine/Transmission in the front, again derived from the Merkava. This doesn't increase the survivability of the tank but helps protect the crew.
-Rear-mount turret, twin 152mm cannons, derived from EndWar's Russian T100's
-Autoloader for each, cannons fed by drums, which are fed by the autoloader. Ammunition is fired electronically, eliminating the hazardous strike-primers.
-Wet Stowage, even the ammo drums.
-Blowout panels so that when the ammo does go up it doesn't kill everybody inside. That's not to say that anybody outside will be okay.
-Caged armor mounts, and chain-weave over the roadwheels. To satisfy Qweipr's energy boner, these tanks will mount Electric reactive armor, which is basically two conductive plates with an inert insulator between. The inner layer is charged, this creates a capacitor. When something strikes the armor, such as a heat warhead's copper jet, or a kinetic penetrator, then the circuit is closed and a metric forgetload of electricity runs through the copper jet or KE penetrator and plasmafies, or liquifies it respectively. This disruption leads to the loss in effectiveness of the weapon. Electric armor is only really something that can be used in the open field, because using it when infantry are around is loving dangerous. When the power goes out then the insulating rubber just acts like NERA/NxRA, still can somewhat disturb projectiles but it less effective at doing so.
-Also the track and road wheels will have a special groove that will allow the tank to climb on to railroad tracks and traverse railroad bridges. This helps mobility some. The idea is derived from a Interwar Russian tank.