Developed as part of a competitive search for a unified European tank. The vehicle turned out to have maneuverability, engine power, and effective anti-tank engagement distance superior to all other vehicles except the Leopard 1. The armor of the vehicle was quite thin, but it was decided that technological advances in anti-tank shells had essentially rendered armor obsolete: survivability would depend on mobility and firepower.
The technical characteristics shown are for the Siege mode
Characteristics are specified for a vehicle with crew members trained to 100%.