* Year: Fuel efficiency standards and technology are constantly improving, so a newer car will likely be more efficient than an older one.
* Class: Fuel efficiency varies greatly by car class. A tiny city car will be more efficient than a large SUV.
* Engine Type: Some engine types (like small displacement diesels) are inherently more efficient than others (like large displacement gas engines).
However, here are some contenders for the most fuel-efficient non-hybrid/non-electric cars, generally speaking:
* Honda Insight: While technically a hybrid, the original Honda Insight (2000-2006) was a gasoline-only car achieving impressive fuel economy for its time.
* Smart Fortwo: This tiny city car boasts excellent fuel economy thanks to its small engine and lightweight construction.
* Mazda MX-5 Miata: The Miata has a surprisingly good fuel economy for a sports car, thanks to its lightweight design and efficient engine.
* Toyota Yaris: This compact car is known for its fuel efficiency and affordability.
* Hyundai Accent: Another compact car with excellent fuel economy, particularly in its newer iterations.
For a more accurate answer, you should specify the year, class, and engine type you're interested in.
Remember, fuel efficiency isn't just about the car itself. Driving habits also play a significant role. Driving smoothly, avoiding aggressive acceleration and braking, and maintaining proper tire pressure can all contribute to better fuel economy.
