As you motor along at high speed, why not take advantage of the space on the freeway and pass the guy in front by switching lanes? This move is not as easy as it looks and can be dangerous.
The problem is that while you are tailing someone, they can see you through their rear view mirror and you can see them. As soon as you start to move there are problems all round.
First off, you have blind spots in your vision. A large area down each side of your car will be invisible to you, even with side mirrors. A car travelling in the adjacent lane, a bit behind you, will not be seen by you. However, it will be hit by you if you move out.
You have to give lots of indication that you intend to move out. When you do move, do so slowly and smoothly, giving time for others to use their horn or move out of the way if there is a problem.
Then you have to consider where you are moving to. As you move alongside the car in front, you will be moving into its blind spot. The driver will not see you and in driving along with all the other distractions, may forget you are there. Are you ready if he decides to move out into your lane? Keep over and be ready to sound your horn to remind him you are there.
As you move past, keeping an eye on the car you are passing, because the job is still not finished. You may now be moving into the blind spot of another car in a lane further out to yours, or of a car in front of the car you are passing. Switching lanes can make you invisible!