I'm sure everyone who plays WOT is familiar with this beast, the Batignolles-Chatillon design for a lightweight MBT. For something that actually had at least a steel prototype made, there appears to be very little information about it floating around. On paper it's a very impressive design. Early 50's, 80mm frontal armor with a healthy amount of slope, and a mere 25 tonnes. 25 tonnes. It makes a T-54 seem overweight! Armament was a high-velocity 90mm cannon of some sort. What was the bat mechanically? An overgrown AMX-13? According to a number of web sources it had hydropneumatic suspension, so that at least was different.