RC tanks. One is your standard Sherman with some improvised armor and hedgerow cutter.
The other is a sort of "What if" tank. In reality late war the US was looking for an answer to germany's big cats after the Normandy/Bocage nightmare. One experiment was to mount the new 90mm turret on a Sherman hull since the new turret and Sherman turret shared the same turret ring diameter. The experiment was scrapped though as it would arrive well after the new M26 Pershing reached the front. Mine has extra improvised armor attached and a future mod will give it a longer gun almost like the Super Pershing's.