Registration for any vehicle is a must and so for cars. The registration procedures differ from country to country. In some countries the car registrations can be decided by the owners. In some countries like India, The registration is not as per the desire of the owners, but the numbers can be chosen by the owner from the available list. However the owner has to pay premium for those chosen numbers. The registration number plates will be of dfferent colours. This can be easily distinguished for taxis and own vehicles. In India, yellow shaded number plate vehicles are for taxis and white numbered paltes are for own use.