Ask any car owner what they are looking for in a car, and you'll more likely get 'fuel efficiency' as the answer. In fact, 66% of US adults choose fuel efficiency as their top priority when trying to purchase a new vehicle. With car brands worldwide vying to be the most fuel-friendly vehicle, not many names can rival Toyota in this category. Toyota's name became synonymous with fuel efficiency when they offered what the market particularly demanded during the 1970s.