Smart Automobile chief executive officer Annette Winkler (L) and Daimler chief executive Dieter Zetsche present the new Smart ForTwo (L) and Smart ForFour cars in Berlin on July 16. Daimler is betting that cooperation with Renault and the launch of models to tap growing demand for city cars may pave the way for its diminutive Smart brand to become profitable. Smart will add a new four-seater model to its lineup this year and upgrade the two-passenger Fortwo vehicle, raising hopes by the German group of boosting the brand's flagging sales. Reuters/Thomas Peter