Four masked men armed with baseball bats attacked a car at Halifax traffic lights.
Two occupants, a male and female, suffered minor injuries in the assault on Saturday night and police are treating the incident as a targeted attack.
The couple had stopped at Arden Road preparing to turn right towards People’s Park.
A Ford Ka was also struck by baseball bats.
Det Sgt Terry O’Keeffe said: “We do not believe the public is at risk. This was a targeted attack.”
The attackers fled in a dark coloured car.
Anyone with information should ring 101 or Crimestoppers on 0800 555111.