The British & Irish Lions forward had been celebrating Wales’ dramatic late RBS 6 Nations win over Scotland with friends last month when he took the vehicle from the team’s base in the Vale of Glamorgan.

Cardiff magistrates heard how 6ft 4in Powell had decided to go to a service station at 5.45am for food, driving a mile-and-a-half down the motorway before being stopped by police.

Powell pleaded guilty to driving a mechanically-propelled vehicle while being unfit through drink.

The 28-year-old was also been hit with a £1,000 fine, with £85 costs and a £15 victim surcharge.

He said: “I fully accept the decision and sentence of the court. In doing so I am mindful of those whom I have let down by my actions and I again offer a full public apology.

“I realise that many young sportsmen and women look up to international rugby players and that some of them may be amused by my antics with a golf buggy.

“However, they should note my regret and be aware that I do not excuse or condone drink driving in any form.”