As a trucker, you're also hampered by the speed limiter. I see so many instances where some car driver, bimbles along at 50-55mph, oblivious to the pain he is causing truckers. Then, as you pass, they speed up, unaware of your presence on their right ear, and leave you trapped in lane 2. Encountered this on the M4 last week. So I passed the truck, moved to lane 1, and gently slowed. This slowed the clown behind me, allowing the truck to complete their overtake. Once the truck was ahead of me, he could move in, then I moved out and continued. Trucker was very grateful. I've done this many times, such fun.