A-Class Driving School's Online Driving Tutorials - Mirrors
Cars have two types of mirror. The interior mirror is made of flat glass and so gives us a true image of what is happening behind us. All decisions should be confirmed with this mirror. It's also the mirror we use first when changing direction. The other type is the door mirror. These are sometimes shaped a little like the back of a spoon (convex) which enables us to see more of what is happening behind us. The drawback of this is that the objects can appear to be smaller, which leads you to believe they are further away than they really are. This is why we confirm all decisions with the interior mirror.
When you use the mirrors, you must act sensibly on what you see. Never make a car slow down or change direction for you.
Blind spot - There are several of these on all cars - two in front of you and two behind. The most dangerous is the one behind you and to the right. Make sure this is checked, by looking over your right shoulder out of the passenger window before moving off and before each manoeuvre. NEVER whilst on the move. This is because twisting your head in your seat will move your shoulders, arms, hands and ultimately the steering wheel. This is obvioulsy dangerous.
The red car is in the blind spot to the drivers right. The green car, only half a car length further back, is visible to the driver in the door mirror.