The official Polish premier of the model InterUrbino 12 occurred on the 16 September 2009 on the Transexpo Trade Fair in Kielce. Whereas the European premier happened in October of the same year on the Busworld Kortrijk Trade Fair in Belgium. The vehicle was already on the road in Bydgoszcz and Gliwice, where various driving tests occurred, the photograph shoots had been in Olsztyn. In 2009 the first two prototypes. In the first half of 2010 there were meant to be 10 prototypes which would have undergone extensive tests and crash exploitation tests. The series production began in the second half of the year. The production line is able to produce 450 buses per year, 70 of them would stay in Poland. The prototypes undergone extensive tests on the Tatratest track in Kopřivnice and on the test track of the Wabco company in Rovaniemi in Finland in the Arctic Circle. The tests included driving in extreme atmosphere, with temperatures dropping to -30˚C. The buses had undergone various durability tests including the elk drive, rough and harsh turns and taking the vehicle on turning extremes, with and without using the route stabilisation ESC, also checking the bus' reaction to sharp turns. In 2010 the first twenty produced buses were delivered to France. There are future variations of the InterTurbino where the bus is longer, with the length of 15 metres, with three wheel axis. In June 2012 the second model of the series debuted, the two wheel axis Solaris InterUrbino 12,8. After this the whole series had a new interior design makeover, with a bow type design by the Berlin designers StudioFT. The Cummins engine is fitted with the OBD2 system. The electrical installation is fitted with LED lighting. This covers the integrated lighting in the daytime, anti-fog lights, integrated baggage shelves, indicators, lights and interior lights. Together with the modernisation a new option is offered, with the classic design option, with the interior passenger premium design. This includes the lighting on the ceiling, integrated baggage shelves and an individual instrumental panel with a ventilation system by each chair.
