List of prototype World War II combat vehicles

This list contains combat vehicles which never left the design phase or had an extremely limited production (usually < 10). == Australia == Australian Cruiser Tank Mark 3 "Thunderbolt" Australian Cruiser Tank Mark 4 Rhino heavy armoured car Australian experimental light tank == Canada == Skink anti-aircraft tank == Germany == Entwicklung Series Entwicklung series, a comprehensive redesign of German armor from small tracked vehicles to a 100-ton super-heavy tank.

Source: Wikipedia — List of prototype World War II combat vehicles (CC BY-SA 4.0)