The Ikarus 280 is the most successful and used urban-suburban articulated bus in the Ikarus Body and Vehicle Factory worldwide.
Doors opening / closing:
F1 / F2: 1 door open / close
F3 / F4: 2 door open / close
F5 / F6: 3 door open / close
F7 / F8: 4 door open / close
F9 / F10: Driver door...