US M-56 90mm SP AT gun (Scorpion)
1953
weighs 7,000 kg
-----------------------------------------
As for the German E-25...It's a fantasy...never built...lets stick to tanks that actually made it into production not pipe dreams ok?
-----------------------------------------
As for the Japanese Flame Thrower tank...It's based on the Type 89. It's proper name was Soukou Sagyou Ki "SS-Ki" Armored Engineering Vehicle. So to say that the vehicle was based on the Soukou Sagyou Ki "SS-Ki" Armored Engineering Vehicle is incorrect. That is actually the vehicle. It's based on the 89.
Next....