It is no secret that a passion can be very infectious. But it is rather more unusual for a family father to ignite a very masculine passion, namely one for classic automobiles, in his wife and daughter. Dr Ravi Prakash worked as a heart surgeon in Bangalore, southern India, then managed clinics and is now the proprietor of a company for safety technology. "I am a Mercedes-lover through and through," he confesses. "The glamour and image of the brand have made me a great fan." He also loves vehicles of all kinds that have left their mark on his homeland of India. And he likes to surround himself with them: over the decades he has collected around 400 two-wheelers, coaches and cars, among them around two dozen Mercedes-Benz models.