Q: How does the shape of a car impact fuel economy?
A: During early design phases, engineers use computer simulation software and wind tunnels to design a vehicle’s shape so it easily cuts through the air while driving. The lower the resistance the air puts on a vehicle, the lower the drag. When drag is low, an increase in fuel economy is noticed. Drag is a force that opposes forward motion. Drag is much more applicable at high speeds than at slow speeds. Among other factors (such as vehicle size, weight, and engine design), aerodynamic styling can significantly influence the fuel economy of a vehicle. To maintain the aerodynamic efficiency of your vehicle, do not add unnecessary accessories or modify the vehicle in a way that impacts the way the air flows around the vehicle.