Mercedes-Benz has already subjected the new chassis to intensive tests. These include endurance tests and hydropulser testing of individual components such as the axles and tanks. And the new engines, too, have been tested under the most exacting conditions ranging from the icy polar circle to the heat and dust of South Africa, for their use on complete buses or on trucks with a permissible gross combination weight of up to 40 t. The tests also include loads so extreme that they never occur in real touring coach operation. All for a single goal: The good feeling to know you have a secure base for sophisticated, economically-efficient, environmentally-compatible touring coaches.