Why are Gas Tanks Located on Different Sides in Various Cars?

the fuel-filler neck is on one side rather than the other. Vehicle Packaging Plays a Major Role Modern vehicles are essentially enormous three-dimensional puzzles. Designers need to fit the fuel tank into available space while preserving passenger room, cargo capacity, ground clearance, and structural integrity. The shape and location of the fuel tank can influence where the filler neck can reasonably be routed. For example, a vehicle’s underbody layout may make one side easier to package than the other. Rather than forcing every model to use the same location, manufacturers can select the arrangement that best fits that particular vehicle.