Let’s say you drive the 117 miles at a steady 60 mph. That’s just under 2 hours. But the M25’s average speed is often closer to 20 mph during the day.
20 mph over 117 miles? That’s almost 6 hours of your life. You could fly to Spain in that time. You could bake a cake. You could learn a new hobby. Instead, you are here. In a car. On the M25.