A driver was airlifted to a trauma centre on Friday afternoon following a serious two-vehicle collision in Mississauga, police say.Emergency crews were called to the Erindale area, near Dundas Street West and Cedarglen Gate, just before 2:45 p.m.Authorities say one car hit a pole and then flipped over.One driver was airlifted to a local trauma centre and another person was transported to a hospital by paramedics.An investigation is ongoing.