Rohlik.cz is already the leading home delivery company for food in its native Czech Republic. The online start-up now intends to honk its horn in Germany within the next three to five years. "It's my primary objective," says CEO and co-founder Tomáš Čupr.Rohlik has just kick-started international expansion in neighbouring Hungary and will press the ignition button in both Vienna and Bucharest later this year. Čupr sees both range selection and delivery speed as the company's USP, especially when competing with bricks & mortar retailers who try to run online shops.Rohlik is currently active in nine Czech cities where it can deliver within a timeframe of just two hours. Even in distant Budapest, where international retail giants like Tesco, Auchan or Spar deliver the next day, the pure player says it can get the job done in three hours.It's one thing to be quick, but it's a completely different thing to be both fast and profitable. So how do these Czechs make their dough?