The Top 10 Most Fuel-Efficient Cars: Which Is Your Best Pick
Fuel prices in South Africa continue to soar, leaving Gauteng drivers scrambling for ways to save at the pumps. With commuting costs climbing, fuel-efficient cars are no longer just a “nice-to-have” — they’ve become a top priority for car buyers. Fortunately, the South African market offers a wide range of vehicles that sip rather than guzzle fuel.
Thank you for reading this post, don't forget to subscribe!We’ve compiled a list of the Top 10 most fuel-efficient cars available in Gauteng in 2025, based on manufacturer-claimed consumption figures. While real-world mileage may vary depending on your driving habits, road conditions, and load, these vehicles offer the best starting point if you’re looking to cut down on your fuel spend.
ALSO READ: Car Prices in 2025: What You Need to Know Before You Buy
1. Suzuki Celerio 1.0 GL Automatic – 4.2 L/100km
Being first on the list of fuel-efficient cars, If affordability and efficiency are your main goals, the Suzuki Celerio ticks all the boxes. This budget-friendly hatchback features a 1.0-litre petrol engine delivering 49 kW and 89 Nm. Paired with a 5-speed automatic transmission, it claims a frugal 4.2 L/100km. Its starting price of R225,900 makes it a smart buy for Gauteng’s city traffic.
2. Toyota Vitz 1.0 XR Automatic – 4.2 L/100km
Sharing DNA with the Celerio due to the Suzuki-Toyota partnership, the Vitz is also a fuel-efficient car. Also powered by a 1.0-litre engine, it offers the same 4.2 L/100km consumption. With a slightly higher price tag of R239,900, it appeals to those who prefer Toyota’s brand heritage.
3. Suzuki S-Presso 1.0 GL+ Automatic – 4.4 L/100km
Compact, quirky, and efficient, the Suzuki S-Presso is another standout. With its 1.0-litre engine producing 49 kW and 89 Nm, this hatchback achieves 4.4 L/100km with the automatic version. At R203,900, it’s a fuel-efficient bargain for city dwellers.
4. Mercedes-Benz CLA 220d – 4.4 L/100km
Mercedes-Benz CLA 220d is a luxurious and fuel-efficient car. Its 2.0-litre turbodiesel engine produces 140 kW and 400 Nm, yet still manages an impressive 4.4 L/100km. This stylish sedan starts from R969,256 and is perfect for professionals seeking both prestige and savings.
5. Mercedes-Benz A200d Sedan – 4.5 L/100km
Closely following the CLA is the A200d sedan. Also powered by a 2.0-litre diesel engine, it offers 110 kW and 320 Nm. Paired with an 8-speed dual-clutch transmission, it achieves 4.5 L/100km. Pricing begins at R970,614, making it another premium yet practical option.
6. Mercedes-Benz C220d – 4.7 L/100km
The C220d adds mild-hybrid tech into the mix for improved fuel economy. This fuel-efficient car has a 2.0-litre turbodiesel engine that delivers 147 kW and 440 Nm, managing 4.7 L/100km via a 9-speed automatic gearbox. Starting at R1,134,587, this car is a smart choice for luxury and long-distance driving.
7. Audi A1 Sportback 30TFSI – 4.8 L/100km
Ideal for urbanites, the Audi A1 Sportback offers a compact premium experience. A 1.0-litre turbocharged petrol engine provides 85 kW and 200 Nm while achieving 4.8 L/100km. With a starting price of R530,900, it delivers on both style and savings.
8. BMW 2 Series 220d – 4.8 L/100km
Sporty and efficient, the BMW 220d’s 2.0-litre diesel engine kicks out 140 kW and 400 Nm. Thanks to its advanced engineering, it achieves 4.8 L/100km in both the Gran Coupe and Coupe variants. Pricing starts at R905,037.
9. Fiat 500 – 4.8 L/100km
Small but iconic, the Fiat 500 brings retro charm with modern efficiency. Its 1.2-litre engine offers 51 kW and 102 Nm, achieving 4.8 L/100km with a 5-speed automated manual transmission. Priced from R308,900, it’s an eye-catching and economical city car.
10. Volkswagen Polo Vivo 1.0TSI GT – 4.8 L/100km
A South African favourite, the updated Polo Vivo GT delivers fun and fuel savings. Powered by a 1.0-litre turbocharged engine producing 81 kW and 200 Nm, it clocks in at 4.8 L/100km. Starting from R363,100, it’s a solid all-rounder for Gauteng’s roads.
With fuel prices unlikely to drop anytime soon, choosing a car with excellent fuel economy is one of the smartest financial decisions a Gautenger can make. Whether you’re a budget-conscious buyer or a luxury car enthusiast, there are fuel-efficient cars on this list to suit your needs. Make sure to test-drive your top picks, and remember that how you drive is just as important as what you drive when it comes to saving at the pump.
Drive smart. Save fuel. Spend less.
