The smash caused tailbacks for commuters leaving Preston, with one lane of the main Garstang Road blocked.
There were reports that the rider was trapped under the car - a black Audi A3 - although police suggested there were only minor injuries.
“One lane has been blocked while the incident is dealt with,” said a spokesperson. “The collision is near to the Texaco petrol station and has caused some del;ays.
“An ambulance has attended, but at this stage it looks like there are only minor inuuries.”