The Mercedes-Benz F-CELL World Drive is moving west through Russia. From Moscow the 3 B-Class F-CELLs drove to St. Petersburg and will continue to Helsinki. The hydrogen powered electric cars have almost completed their 30 000 kilometer mission free drive around the world. The cars are accompanied by a mobile fueling station and a team of technicians for regular check ups and maintenance. The only female technician on the tour is Marie Rathfeld and she is proud to be part of a top team. The B-Class F-CELLs are expected back in Stuttgart June 1st.