1. Toyota Prius
The Toyota Prius led the way in 2005 as the most fuel-efficient car in America. It boasted an impressive EPA rating of 60 mpg city / 51 mpg highway, thanks to its advanced hybrid system. This pioneering model not only saved drivers money at the pump but also sparked a hybrid revolution, influencing countless models that followed. For official fuel economy details, visit the EPA’s 2005 Prius page.