The sand dune towers above it like a mountain. The G-Class remains completely unimpressed. It accelerates smartly up to the top, overcoming the obstacle with ease. One year before the launch of the first G-Class, a team from Mercedes-Benz set off to thoroughly test every aspect of the off-roader in the Tunisian desert. Driver Heinrich Wangler looks back: 'We really put the G-Class under the microscope, and were constantly amazed at its capabilities.' This developed into a competition between the drivers and the G-Class, to see which would reach their limits first. Today it surprises nobody that the G-Class emerged the winner.