A car ended up on its side after it crashed into a parked vehicle in Brunswick Street on Saturday night.
It is thought that the car mounted the pavement after leaving the road and colliding with railings on March 19.
Emergency services were called to the main road at 11.30pm where crews found the driver still in his car.
He was taken to Warwick Hospital for further treatment, and his present condition is not known.
Nobody else is thought to have been hurt in the incident.