As petrol and diesel cars continue to remain popular amongst motorists, there are a wide variety of models available that offer some of the most efficient fuel economy available. But which cars are the most economical? Well, here's a look at some of the top contenders on the market today.

Economical Petrol Cars

Mazda 3 SkyActiv-X

For those looking for an efficient petrol car, one of the best choices on the market is Mazda's SkyActiv-X powered Mazda 3.

Thanks to its impressive 2 litre engine, this car offers extremely low running costs with a combined fuel economy of around 54mpg.

It also has superb handling, plenty of power and driver aids such as adaptive cruise control, lane-keep assist, blind-spot monitoring and emergency braking system.

Rear view of a white mazda 3

Honda Civic Hybrid

Another great choice for petrol efficiency is the Honda Civic Hybrid.

Powered by Honda's advanced hybrid technology, this car can produce up to 62mpg combined with CO2 emissions as low as 97g/km. The hybrid system combines electric power from two motor generators with a 1.5 litre petrol engine for optimum performance and efficiency.

It also features an advanced infotainment system that provides drivers with access to music streaming services plus satellite navigation and other connected services.

Man in suit walking away from New 2022 Honda Civic


PEUGEOT’s ultra-compact supermini is only available with one 998cc (or 1.0-litre, in layman’s terms) engine, which is capable of a highly impressive 68.9mpg.

The PEUGEOT is mechanically identical to the Toyota Aygo and Citroen C1, and as such, both of those cars also claim the same mpg figure.

rear view of red Peugeot 108 parked at the side of an office

Economical Diesel Cars

Mercedes Benz' A-Class

For diesel efficiency Mercedes Benz' A-Class is an excellent option.

With a 1.5 litre turbo diesel engine producing 116hp, this car can achieve up to 70 mpg combined thanks to its responsive 7 speed dual clutch automatic transmission (DCT) and ECO start/stop system which helps reduce idling time when stopped in traffic or at lights etc.

Additionally it includes several drivability features such as active brake assist and lane keep assist plus a suite of driver convenience technologies like keyless entry/start and Apple CarPlay/Android Auto compatibility etc.

Mercedes Benz A-Class

Toyota Prius Plug-in Hybrid

There's also Toyota's Prius Plug-in Hybrid which delivers class leading efficiency thanks to its combination of electric motors and 1.8 litre petrol engine delivering up to 102mpg.

This model also benefits from regenerative braking technology which captures kinetic energy generated when slowing down or downhill driving resulting in improved efficiency still further whilst helping protect the environment too!

Furthermore it features Toyota Safety Sense technology for assurance on all journeys including pedestrian detection, automatic emergency braking and adaptive cruise control systems etc.

red toyota prius parked next to a concrete wall

Volkswagen Passat

The Volkswagen Passat TDI is another highly rated diesel model from Volkswagen.

It features a 2.0-liter turbocharged four-cylinder engine that produces 150 horsepower and 236 pound-feet of torque while providing up to 30 mpg in the city and 42 mpg on the highway. The Passat TDI also offers plenty of interior space with seating for five passengers as well as extra cargo room in the trunk area.

Side view of White Volkswagen Passat Estate

Volkswagen Golf

The Volkswagen Golf TDI is another great choice when it comes to economical diesel cars from Volkswagen.

Powered by a 2.0-liter turbocharged four-cylinder engine that delivers 150 horsepower and 236 pound-feet of torque, the Golf TDI provides both power and efficiency with up to 30 mpg in the city and 44 mpg on the highway.

The Golf TDI also offers plenty of interior space for five passengers as well as plenty of cargo room in its hatchback design, making it a great choice for those who want a more versatile vehicle without sacrificing efficiency or performance.

side view of yellow golf parked on a beach

Overall these cars represent some of the most economical petrol and diesel cars currently available in 2023 providing excellent value for money despite their varying price tags!

With so much choice available it's worth taking time out to research each model thoroughly before making a purchase decision - so be sure you get just what you need!



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