The collision on the A457 Oldbury Road, at around 23:30 GMT, also seriously injured Ethan Kilburn, 21, and Ebonie Parkes, 20, who are still recovering from their injuries, police said.

Al Maamoury’s two adult children were in the car at the time of the accident.

Street racers had been using the section of road between the roundabouts for circuits at the time, West Midlands Police said, with hundreds of people watching.

Prosecutor Michelle Heeley KC said the car, imported from Japan, had been modified so that the exhaust spewed fire and had a turbo engine.

He said Al Maamoury had been driving at speeds of up to 90mph on a 40mph road.

The accident was not because he was driving too fast, but because he was speeding excessively, he said.

“As he pulled away, the rear of his car lost traction with the road and then began to head toward the median. “He tried to overcorrect and lost control.”

Damian Corfield, Ben’s father, said his son had been “hit on the sidewalk where he should have been safe.”

He said: “The son we had waited for so long was gone forever.”

Liberty’s mother, Tracy Charris, paid tribute to her “larger than life” daughter, who was a “force to be reckoned with”.

She said: “I always wanted a girl and from the moment she was born.”