Before you drive off, try holding your hand about two inches in front of your eyes and consider what you can see directly in front of you. Keeping your hand in front and in line with your eyes, gradually move it away and notice how your view of the world in front is changing. If you apply the same principle to large vehicles you will find that by keeping well back you will have a wider field of view ahead. This is one reason why you are advised to leave a ‘two chevron’ gap on specially marked sections of motorways. Quite simply, if you follow a large vehicle too closely you will miss opportunities to overtake because you can’t see far enough ahead. By keeping well back you’ll be in a much safer position to overtake when an opportunity arises.