HelpRental informationSIXT for businessTravel agenciesSIXT partnersSIXT NewsImprint & privacyDo not promote my own informationTerms & problems To ride the Karwa buses, travellers will require a travel card, generally known as a Karwa smartcard These can be unrestricted and rechargeable, or restricted to 24 several hours. The car is delivered with https://www.strongrentacar.com/en/rent-a-car/small-saloon