At 9pm on Friday 25th March the victim, driving a black BMW, got out of his car to speak to the driver of a grey Ford Focus behind him.
The passenger of the Ford Focus, got out and became verbally abusive, threatening the victim and using racist language.
The suspect’s described as White, male in his 20s or early 30s, around 5ft 10, of slim build with short dark hair.
Police are urging any witnesses or anyone with information to contact them on 101.