You're driving a lorry of more than 7.5 tonnes maximum authorised mass along a motorway. When can you use the right-hand lane to overtake? You're driving a lorry of more than 7.5 tonnes maximum authorised mass along a motorway. When can you use the right-hand lane to overtake?

• Possible answers:

   
• A. When the motorway has two lanes
• B. When the motorway has three lanes
• C. When there's a 50 mph speed limit
• D. When there's a 40 mph speed limit