The collision involved a white van and a black Vauxhall Corsa.
As a result of the incident the Corsa collided with the central reservation barrier.
The van, which is described as a white car derived van, stopped on the hard shoulder for a few minutes before driving off.
Are you the driver of the white van? Did you witness the collision?
Anyone with information is asked to call Police Constable Jim Chapman, from the Roads Policing Unit based at Havant police station on 101, quoting 44160072445, or Crimestoppers anonymously on 0800 555 111.