Would it having ~5 inches of composite armor (semi-ablative min-max armor composite layered with ablative alloy armor, Osium-Iridium alloy (ala Hammer's Slammers Ursa tanks), Pollyalloy armor, titanium alloy, Ferro-ceramics, walled carbon nanotubes, Mollybdinum Pollysteel Alloy with diamond-carbon nanotube weave, Titanium, Titanium weave (ala Craven Corporation armor)) with possible armor enhancement packages (utilizing things like hydro-crystalline energy absorbing armor gel (which is extremely resistant to kinetics), more ceramics, and more), a Mono-Permeable Anti-Kinetic/Energy Dispersion Defense Barrier to act like an omnipresent shield (only way to 'down' such a shield is to destroy its emitters), a 150mm coilgun (called a linear cannon) firing rounds at 10km/s, a UV-B FEL laser, 2 M2B4 HMGs (think Ma Dauce 2.0), an active defense mount using a .50 cal plasma beam pulse gun, powered by a proton-proton fusion turbine, can move up to 95kmh on road or between 70-85 off road, a sophisticated suite of electronic counter wave measures and cross-spectrum sensors, countermeasure mortars that fire flare/chaff hybrid countermeasure mortar rounds, a fire control suite that can shot targets to horizon within a 10 nanosecond reaction time, massing 175 tons, and slightly larger than a M1A2 with TUSK.
Aesthetics would be mostly between the Abrams, Leopard II, and Challenger II. It's a tread vehicle with the capability to run on the road wheels bare. Its name is Schwarzkopf.
Overkill and over engineered? Maybe. Then again this thing is designed to go up against tanks with particle, plasma, and lasers a plenty as well as coil guns with similar power.
What's the power source? Also, it sounds like those weapon systems would generate significant amounts of waste heat. Do you think the systems would manage heat removal separately, or would the the tank handle it with some sort of cooling plant to remove it?
That curb weight is quite high, and at the stated size there are practical limits to track width. I assume these would be brought in by rail or some sort of superheavy transport.