Major Collision Investigation Unit detectives are investigating a two-vehicle collision in Tuerong last night. It is believed the driver of a Mazda hatchback was travelling along the Mornington Peninsula Freeway when they collided with another vehicle on the Nepean Highway about 9pm. The driver of the Mazda hatchback, a 33-year-old Mt Waverley woman, sustained life-threatening injuries and was airlifted to hospital for treatment. Her passenger, 27-year-old Bundoora man, also sustained life-threatening injuries and was taken to hospital for treatment. The driver of the Toyota Camry, 37-year-old Oakleigh South man, sustained minor injuries and was taken to hospital for observation. His…