The cars can be considered as one of the best inventions of man. The cars are basically used for transporting a person from one location to another and can also accommodate at least 3 to 4 people. The cars are designed for comfort and luxury and are hence expensive. They are generally run on petrol and diesel. The engines are all internal combustion engines which mean the fuel is burnt inside the car. The cars are classified based on their utility. They can be sports car, limos, sedans, etc. The sports car is small, fast and too expensive. They average high speeds in short times and usually accommodates two people. The limousines on the other hand are huge and powerful. They are expensive because of their size. The sedans or the normal cars are for families. They can accommodate four to five people and are inexpensive. They are designed for comfort and are more common. The cars run on wheels and they have side mirrors. They have windows to maintain privacy. The interiors are designed based on the likes of the customers. They have audio players and even laptop jacks for holding laptops. The air bag system is provided as a measure of safety to the passengers.