In May of 1946, Chrysler presented a heavy tank to the War Department Equipment Board. Chrysler's vehicle arose from postwar requirements for American heavies that were spawned by the fear of the IS-3. The Chrysler vehicle was called the Chrysler K Tank(no relation to the K Cars). Oddly, The K Tank featured some unorthodox design features. Most notably is the rear turret design. Other oddities about the K Tank is the 4 .30 caliber MG pods(fired remotely like the guns on the B29 bomber), the unique suspension, the 1200 hp engine, and the location of the crew all being within the turret much like the MBT 70.
With an estimated weight of 60 tons the K Tank was a relatively large and well protected vehicle. The frontal hull armor of the K Tank is approximately 205 mm(178 mm at 30 deg) thick without normalization. The side armor being near 76 mm thick, with proper angling the K Tank could be an effective side scraping vehicle. The turret armor is very thick in the front like most American vehicles even without the mantlet. The rear area of the turret is where ~100 rounds of the main gun ammo would be stored. By the way, the main gun is the 105 mm T5E1(which is going to be a subject sooner or later itself), however the rear turret arrangement really hampers the depression values(-5 degrees would be lucky to get out of it).
The 1200 hp engine would give this behemoth ~20 hp/t which is more/less the same as the E-50. However the 60 ton weight mark is most likely an underestimate. The final drive is located in the front which could pose some fire issues.
It is noteworthy to mention that Chrysler reused the K Tank name in the late 60s when they were asked to create the next generation of M60s. The K Tank used technology from the MBT 70, but the 2nd K Tank was also never adopted and faded into oblivion.
In WoT the K Tank would find itself a good spot as a tier 8 premium in my opinion. The possibility of an alternate US Heavy line also opens the opportunity to have the K Tank become a researchable tier 8 or even a tier 9 armed with a more powerful 120 mm gun. I haven't seen WG ever talk about this design though so we might never see this vehicle in WoT.
Hunnicutt's Firepower and Patton