A DRIVER who'd stopped to allow another vehicle to pass on a narrow Greenock street was ambushed in an unprovoked attack which has left him scarred for life.

Brendan O'Donnell pounced on the motorist at 1am on Raven Road and struck the man on the head with the glass weapon before repeatedly punching him to severe injury.

O'Donnell, 19 — who was originally charged along with his brother Kieran, 18 — smashed the bottle and brandished i.

He then told his terrified victim: "I'll stab you right in the jugular."

Prosecutor Saud Ul Hassan told Greenock Sheriff Court: "The witness was in the vehicle with his friends and he'd stopped for an oncoming vehicle to pass.

"There was a problem with his clutch and the car rolled backwards.

"The accused and former co-accused were under the influence and both had glass bottles."

Mr Ul Hassan added: "The complainer tried to start the vehicle.

"He positively identified the accused from a a police emulator board of photographs.

"The accused was arrested and he gave a 'no comment' interview."

CCTV footage of the shocking attack on July 30 last year — which also shows O'Donnell's brother — was played to the court.

O'Donnell pleaded guilty on indictment to assaulting the driving by striking him on the head with a bottle, struggling violently with him and repeatedly punching him on the head all to severe injury and permanent disfigurement.

He also admitted to conducting himself in a disorderly manner, repeatedly shouting, making threats of violence, brandishing a bottle and repeatedly kicking his victim's car.

His brother Kieran's pleas of not guilty to both charges were accepted by the Crown.

Sheriff Andrew McIntyre deferred sentence on O'Donnell, of Greenock's Grieve Road, until May 23 for a background report and remanded him in custody.

Defence lawyer Gordon Nicol reserved his plea in mitigation until then.