You're driving a lorry carrying a load that's 4.5 metres (14 feet 9 inches) wide. What's the maximum speed you're allowed to drive on a motorway? You're driving a lorry carrying a load that's 4.5 metres (14 feet 9 inches) wide. What's the maximum speed you're allowed to drive on a motorway?

• Possible answers:

   
• A. 10 mph
• B. 20 mph
• C. 30 mph
• D. 40 mph