The annual IBC (International Bus & Coach Competition) test marathon staged by the industry publication "BusFahrt" and its media partners enjoys an excellent reputation in the bus and coach sector. The focus alternates from year to year between regular-service buses and touring coaches, which are put through their paces by a test crew comprised of industry journalists and fleet drivers. Five current urban bus models, all with Euro VI engines, were tested by test partner MVG (Münchner Verkehrsgesellschaft) this year - between them, they represented more than 75 percent of the European urban bus market. In order to ensure comparability, the IBC organisers stipulated that low-floor buses in the popular 12-metre body length with 300 hp engine output (or as close as possible to that figure) were to be tested. All models had to carry 4500 kg ballast; and the test candidates had to be fitted with the same tyres and be lubricated with the same lubricants. Checks were made, in real-life test conditions, on the comfort and safety of passengers and driving personnel. Particular emphasis was of course placed on economy and the question of the level of efficiency that an operator could count on. After 3500 test kilometres and countless individual checks, the result was made known: The Mercedes-Benz Citaro was adjudged by the test jury to be the best urban bus currently available.