A Leopard 2 tank: the original Leopard drew on Nazi-era designs by Ferdinand Porsche. With four different models available, today’s Leopard 2s are built by Krauss-Maffei. Photograph: Michael Sohn/AP Those in the know call Germany’s Leopard 2 tank the Porsche of the battlefield – and for good reason. Lighter than its British (Challenger) or US (Abrams) competition, the Leopard has a wider range (500km), handles better and moves faster (70km/h) with more horsepower (1,500PS) on a diesel engine. Small wonder that the tank – first developed in 1964 and redesigned as the Leopard 2 in 1979 – has been a...