Here is the link to the new home of the Mercedes Museum. The new museum building has been open nearly one year since May 2006. It is easy to travel to the museum from Stuttgart main railway station.
Just catch the S-Bahn line S1 train going in the direction of Plochingen / Esslingen. Get off the train at the Gottlieb-Daimler Stadium station and follow the signs for a short walk to the new building. Please read the details about opening times and entry fees.