Rashid said it looked deliberate.
''My daughter started screaming, and there were people on the ground,'' he said. ''They were just innocent people, just fans going to enjoy the parade.''
Liverpool fans had come out in the tens of thousands to celebrate the team winning the Premier League this season for a record-tying 20th top-flight title.
Peter Jones, who had traveled from Isle of Man, said he heard the car smash into the crowd and saw at least a half-dozen people down.
''We heard a frantic beeping ahead, a car flew past me and my mate, people were chasing it and trying to stop him, windows smashed at the back," Jones said. ''He then drove into people, police and medics ran past us, and people were being treated on the side of the road.''
Merseyside Police said they were trying to establish what led to the incident and asked people not to speculate or share ''distressing content online.''