The man in his 40s was found with serious injuries
Gardaí are investigating a hit and run incident and an alleged assault in Dublin city.
It happened on Parnell Street at the junction of Hill Street in Dublin 1, at about 12.20am on Friday morning.
Witnesses then claim a number of men got out of the car and assaulted the man.
The man, aged in his 40s, was found with serious injuries following the incident.
He was taken by ambulance to The Mater Hospital.
Gardaí believe that the man was struck by a green or blue-coloured Audi saloon car, which left the scene in the direction of Summerhill.
They are appealing for witnesses to this incident, or anyone with information, to contact them at Mountjoy garda station on 01-666-8600.