11. 1920 marked the first year that plates were issued to different classes of vehicles . 12. There are six different classes of vehicle that can be applied for a driver's license: 13. The closed section is distance-based, charging based on the class of vehicle and distance traveled. 14. Career races are restricted to one class of vehicles . 15. Each class of vehicles pays approximately 1, 5 times the toll paid by the previous class. 16. The frequency varies for different class of vehicles . 17. It was a class of vehicles with the name varying according to the body mounted on it. 18. The legal requirements to be a chauffeur vary depending on the local jurisdiction and class of vehicle . 19. Unlike other classes of vehicles , no driving instructor is necessary when learning driving a motorcycle / motor tricycle. 20. In areas like Alipur, Barasat, Barrackpore and Howrah, letters were assigned for different classes of vehicles for private vehicles.