An automobile is a vehicle that moves on four wheels and is one of our primary methods of transportation. Automobiles are also known as cars or vehicles. Trucks, sport utility vehicles (SUV), and minivans are different types of automobiles, and are sometimes referred to as cars, vehicles, or motor vehicles.

Automobiles are usually powered by an internal combustion engine using gasoline or diesel fuel, or by one or more electric motors, using energy stored in one or more rechargeable batteries.

In Colorado, automobiles, which include cars, trucks, SUVs, and minivans, are subject to state statutes and federal laws that govern their operation, registration, safety standards, and environmental impact. All motor vehicles operating on Colorado roads must be registered with the Colorado Department of Revenue, Division of Motor Vehicles (DMV). This involves obtaining a title and license plates, as well as passing an emissions test if the vehicle is powered by an internal combustion engine using gasoline or diesel fuel. Electric vehicles, which use rechargeable batteries, are also subject to registration but may have different requirements regarding emissions testing. Additionally, Colorado offers various incentives for electric vehicle owners, such as tax credits and access to carpool lanes. Drivers must adhere to traffic laws enforced by the Colorado Revised Statutes, which cover rules of the road, vehicle safety standards, and driver licensing requirements. Federal laws also apply, particularly those related to vehicle safety standards and environmental regulations set by agencies such as the National Highway Traffic Safety Administration (NHTSA) and the Environmental Protection Agency (EPA).