Dear Red Lorry
You are a similar size to yellow lorry. You are a similar weight to yellow lorry. You have a similar size engine to yellow lorry.
When yellow lorry slows down going up an incline, the laws of physics mean that you are also likely to slow down. Consequently, there is little point attempting to overtake yellow lorry. Unless you shed your trailer or engage turbo boost mode, you will simply hog the middle lane. You may eventually pass yellow lorry on the flat after 17 minutes and 9.4 miles. Alternatively, you may have to abort the manoeuvre and lose face.
So please just sit behind yellow lorry and unwrap another man-size Yorkie.
Yours sincerely
Motor car