ONE of the biggest differences between BMW and Mercedes is that the latter makes commercial vehicles, including buses, trucks and vans. Like its cars, the Mercedes vans are not the cheapest and bring a certain level of quality to the class. , , Its small Vito van, which carries up to 1180kg, can be bought as a cargo-carrying van, a van with a second row of removable seats or as a nine-seat people-mover., , Mercedes has upgraded its four and six-cylinder turbo diesel engines, improving the performance and driving down the fuel consumption. The best fuel economy number is 7.4 litres per 100km for the four-cylinder., , It is also fitting electronic stability control (ESC) as standard on all models as well as dual airbags, while side curtain airbags are optional on some models and standard on the people-mover.