Police are appealing for witnesses following a collision between a silver Vauxhall Corsa and a quad bike.
The collision occurred at around 5.45pm on Friday (December 6) as the two vehicles were travelling in opposite directions along the A23 near Gatwick House Guest House, Horley.
The quad bike rider, a man in his 20s, was taken by ambulance to St Georges Hospital, Tooting for treatment to a broken arm.
It is also suspected he suffered a broken leg, internal and head injuries.
Call Surrey Police on 101 quoting reference P13371622.