A woman was punched in the face in an apparent "road rage" incident in the Kingswood area of Bristol.
Police said the woman, in her 30s, had stopped her vehicle on Hanham Road on 6 April. A man then approached her and punched her.
The offender, who was driving a grey BMW, is described as white, between 26 and 31, and 5ft 7in tall.
He had a medium build, short brown hair and was wearing a light tracksuit top and light blue jeans.
Police have appealed for witnesses.