"The Leichttraktor (VK-31) was a German experimental tank.After the First World War, Germany was restricted in military development by the Treaty of Versailles but a secret program under the name cover \"Traktor\" was developing armoured military vehicles and artillery. Its engine was in the front, and the turret was rear-mounted. Both Rheinmetall and Krupp produced prototypes, and in 1928, Rheinmetall was awarded the order of 289 tanks; however, the order was cancelled."@en . . "4.35"^^ . . "2.37"^^ . "2.35"^^ . . "8.7e+06"^^ . . "Leichttraktor VK-31"@en . .