Daimler has just launched its car2go project in Ulm, Germany, which will see 50 Smart Fortwos left dotted around the city for use by company employees who have pre-registered a desire to hire them. This ‘floating vehicle pool’ works on either an instant-access or pre-book basis – and customers can simply get into an empty one, enter a personal PIN number and drive away. Hirers then simply pay for the Smart use by the minute.