Coastguard Rescue Teams from Bembridge and Ventnor are in attendance at the popular viewpoint, alongside Police.
A male, who is understood to have been driving the Mini car, is being attended to by officers and members of the public. He has survived the incident but is in a distressed state.
Witnesses – including young families – say the individual was driving around on the grassed area before the Island-registered vehicle veered towards the cliff edge.
Emergency services were alerted to the incident at around 15:35.
UPDATE @ 17:45 – Recovery agents Bartletts Service Station are working alongside Police and HM Coastguard to work out how best to recover the Mini One from its precarious position. The recovery efforts are being hampered by the strong winds being experienced on the cliff top.
An ambulance and ambulance officer from the Isle of Wight Ambulance Service finally arrived on scene at 17:15 and are now attending to the male, who is understood to be the only person involved in the incident. It is said that no ambulance resources were initially available.
Hampshire Constabulary spokesperson has said:
“We were called at 3.30pm to reports of a single vehicle collision at Culver Down.
“A Mini Cooper collided with a fence and came to rest at the edge of a cliff”.
Culver Down has been closed to motorists by Police.
UPDATE @ 18:50 – The vehicle has been successfully recovered this evening, resulting in the incident being brought to a close.
Island Echo understands that the vehicle stopped just 2ft short of the 300ft drop thanks to the installed fencing, which got caught around the front of the vehicle.
Culver Down has now re-opened.