Automobile Technology is a branch of vehicle engineering. It comprises elements of software, mechanical, electric, safety, and electronic engineering, which are used on planning, designing, manufacturing, and upgradation of vehicles like cars, motorcycles, scooters, and more. The branch is also responsible for the modification of these vehicles. This books describe the basics of vechicle performance, different Engine, Steering system, brakes, Suspension, Tires, Design basics of Two wheeler, Three wheeler and Four wheeler, Difference beween IC ENGINE VEHICLES AND ELECTRIC VEHICLE.