It's big versus small, with the largest production off-roader taking on the smallest. The Mercedes Zetros 6x6 versus the plucky Fiat Panda 4x4. 10.5 tons against 1 ton. 7.2 liters and 240 kW versus 1.3 liters and 51kW. Does the Panda stand a chance or will the giant Zetros make light work of it?