A court has jailed Darlington car dealer Simon Robinson for nine months for drink driving.
Robinson, who runs the Simon J Robinson classic car dealership in Darlington, admitted dangerous driving and driving with excess alcohol.
He was also banned from driving for four years.
The court heard that police were alerted by drivers on the A1, who has swerved to avoid Robinson who was heading north on the southbound carriageway in his Mercedes C200.
Police caught up with him but he continued to drive for nine miles at up to 70mph.