German carmaker Mercedes-Benz sees business potential in offering on-demand limousine services using driverless cars, Daimler Chief Executive Dieter Zetsche said, in what amounts to a direct challenge to Uber. Germany’s oldest carmaker is considering setting up large fleets of autonomous cars to cater to a new customer base which is less attracted to vehicle ownership but still interested in using premium transportation services like limousines. “This is a concrete development goal of ours,” Zetsche told…