What are the factors that influence the fuel efficiency of a car, and how do variables such as engine design, vehicle weight, aerodynamics, tire selection, and driving behavior impact fuel consumption and overall mileage?

Several factors influence the fuel efficiency of a car, including engine design, vehicle weight, aerodynamics, tire selection, and driving behavior. A more efficient engine design, such as turbocharging or direct fuel injection, can improve fuel economy by increasing power output while reducing fuel consumption. Lighter vehicle weight and improved aerodynamics reduce the energy required to propel the vehicle, resulting in better fuel efficiency. Additionally, selecting low-rolling-resistance tires and practicing fuel-efficient driving habits, such as maintaining steady speeds, avoiding aggressive acceleration and braking, and reducing idling, can further improve fuel economy and overall mileage.