Who says that birthday greetings always have to be dry and serious? We thought up this surprise video on 7 March 2016 for our fellow car maker and favourite competitor, BMW. After all, competition is a motivator, and rivalry is good for business on social media, too. And our fans apparently also enjoy vying with one another. The birthday serenade earned 7,621 comments, making it the clear number one on the @mercedesbenz Instagram channel.