The Pac Car - the most fuel efficient car in the world

The Pac-Car holds the Guinness World Record as the most economical car. Built by the Swiss Federal Institute of Technology to demonstrate how fuel efficient a car can be, it travelled 5385 km for only 1 litre of gasoline. This corresponds to 0.0186 l/100km, or 12,646 MPG! This means the Pac-Car would only use 8 litres of fuel to drive around the globe.

Most Economical Cars - Welcome to our site!

Weighing only 30kg the downside of the Pac-Car is it isn't exactly a practical family car! Welcome to the Most Economical Cars where a fuel efficient car doesn't mean giving up on practicalities. Here you will find all types of economical cars including large family cars, people movers, pick ups and even sports cars! These cars will save you money and greatly benefit the environment while matching other cars for features.
A note about hybrid cars: the emphasis on this website is fuel economy ratings so we only list hybrid cars that are not plug in hybrids and therefore only use regular fuel as their source of energy. It would not make sense to include plug in hybrids in our list of most fuel efficient cars since they receive energy from two sources - both regular fuel and electrical outlets, so regular fuel economy ratings are not possible to obtain. Please also visit our sister site Hybrid Cars Compared, which is dedicated to hybrid cars and provides information on hybrid cars across all classes of vehicle, both plug in and regular hybrids.
We have introduced a new site for electric cars. Please visit Electric Cars Compared, to find information on the best all electric powered cars currently available, such as the Tesla Roadster. These cars run on electricity alone.
Find out the most recent fuel efficiency news. Read our Vehicle Fuel Economy Latest News

Most Fuel Efficient Cars - Top Performers






The Fiat 500 is the most fuel efficient car produced

Fiat 500
Combined fuel economy: 56 mpg (US), 67 mpg (UK), 4.2 l/100km

Arriving exactly 50 years after the launch of the first 500, this incarnation is powered by a 1.2 litre 4 cylinder petrol engine. It is currently the most fuel efficient car on the market.

Smart For Two - one of the most economical cars

Smart for Two
Combined fuel economy: 53 mpg (US), 64 mpg (UK), 4.4 l/100km

We have a four way tie for second place for the most economical cars. The Smart for Two is a tiny 2 seater. You can park this fuel efficient car rear to the kerb in many streets.

Citroen C3 - second place in the most economical cars

Citroen C3
Combined fuel economy: 53 mpg (US), 64 mpg (UK), 4.4 l/100km

Tying with the Smart for Two to be the most economical car is the larger C3. Powered by a 1.6 litre turbodiesel it manages to be as fuel efficient as a Prius at a fraction of the cost.

Fiat Punto - equal second most fuel efficient car

Fiat Punto
Combined fuel economy: 53 mpg (US), 64 mpg (UK), 4.4 l/100km

In equal second is the fuel efficient Punto. It is surprising and a great achievement that two of the top five most economical cars are not minis/subcompacts, but from the slightly larger small/compact class.

Toyota Prius economical car

Toyota Prius Hybrid
Combined fuel economy: 53 mpg (US), 64 mpg (UK), 4.4 l/100km

Finally, also tying for second is the hybrid Prius which incredibly is not a mini or small car but is the most economical car of the midsizers! The Prius has amazing fuel saving technology for city driving.

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