Police have a photo of him and would like to have a word about two crashes in which three people with injured.
“We want to speak to him in connection with two collisions in Teversham which left three people with serious injuries,” said a police spokesperson.
“Do you recognise this man? “
The first crash took place on Gazelle Way, Teversham (a small village near Fulbourn and three miles from Cambridge city centre) at approximately 3.35pm on 15 May and involved a grey Toyota Corolla and blue Mini Cooper.
“This crash then caused a further collision minutes later, involving a black Hyundai,” said the spokesperson.
“Three people were taken to hospital with serious but not life-threatening injuries and have since been discharged.”
Anyone who has any information is urged to contact the force online quoting crime reference 35/38133/23, or call 101.