The basic formula for a limousine is pretty simple. Some workers cut a factory-made car in half then increase the length of the original vehicle by installing an extension space in the middle. The drivetrain components and electronic wiring are adjusted accordingly so they can still work without a hitch despite the addition. Once the extended structure is done and the vehicle actually works like any regular car, the interior gets its lavish treatments to provide luxury for passengers. Some of the most luxurious are as follows.