Have you ever wondered what that icon depicting a car with a little open ended arrow in your vehicle is for? It's called the air recirculation button, and using it could help you cool your car ...

including less familiar features like the recirculation button. Even something as simple as a car seat belt has components that you may be unfamiliar with. There's the tongue and latch of the seat ...

According to the Derbyshire-based firm: "The main downside of the air-recirculation button is that it traps humidity inside the car, which results in misted windscreens, especially when the air is ...