To make the most of this UK driving route, familiarise yourself with the road ahead using a sat-nav or mapping app. UK motorways use a numbering system — M roads are motorways, A roads are major routes, and B roads are secondary. Always drive on the left and overtake on the right. Motorway services are ideal for breaks and are well-signposted in advance. Be mindful of speed limits: 20 mph in residential zones, 30 mph in towns, and 70 mph on motorways. Fuel prices vary between stations, so consider filling up at supermarket forecourts for better value on longer journeys.