Soon after, police were called to nearby Hunton Road, where a dead man was found. They believe he was the man forced into the car.
The 22-year-old was not seriously injured. Officers were initially called to reports of disorder in The Gardens at about 20:50 BST. They were then called to Hunton Road about five minutes later, a West Midlands Police spokesman said.
Det Insp Warren Hines, from West Midlands Police, said: “I believe there were two vehicles involved in this incident a blue Mercedes and a silver VW Passat, and I would ask that anyone who saw these cars in the area around The Gardens and Hunton Road to contact me as a matter of urgency.”