Witnesses of the era. His Majesty's Garage

A historical documentary about the history of His Imperial Majesty's Own Garage. The film centres on the car of the Russian Emperor Nicholas II, a Mercedes 45PS. Why were Mercedes cars the first ones to set foot on palace pavements but then forgotten about for almost 100 years? How did technical innovations affect the life of the imperial family and the history of the country as a whole? How did Russia create traffic rules?