Tag - power transmission systems

Instead of calling a mechanic, you can fix the condition of your vehicle yourself. How

Seat belts protect from the effects of an accident, but can be a hindrance when pulling the injured from the wreckage. A special knife is used to cut them, and the fire department, among others, is equipped with it. But is it worth to carry it in the car?

Phone holder is a useful gadget that affects the safety and comfort of driving. It is worth to have it. What are the best ones?