How to Drive Cheaply – This Model Uses the Least Fuel!

19 March 2025

When it comes to driving, it’s not just about design, features, or engine performance – fuel consumption also plays a crucial role. Whether you're driving long distances or just short trips: a fuel-efficient car not only saves you money but also helps the environment. But which model consumes the least petrol or diesel? And what’s the difference between the two fuels?

Petrol or Diesel – Which is More Efficient?

When comparing a car’s fuel efficiency, consumption is usually measured in liters per 100 km.

In general, diesel engines are often more efficient than petrol engines and consume less fuel per 100 kilometers. However, petrol cars are usually cheaper to buy and have lower maintenance costs. Your driving profile determines which option is better for you: if you drive a lot and mainly cover long distances, a diesel can be worth it. If you mostly drive in the city or cover fewer kilometers, a petrol car is often the better choice.

The Most Fuel-Efficient Cars at a Glance

To make your decision easier, we have compiled a list of the most economical models. Here’s a look at which cars consume the least fuel:

Škoda Fabia: 4.6 l/100 km (Petrol)
Seat Ibiza Style: 5.2 l/100 km (Petrol)
Ford Focus ST-Line X: 5.4 l/100 km (Petrol)
Audi A3 Sportback 35 TFSI: 5.5 l/100 km (Petrol)
Škoda Kamiq Monte Carlo: 6.4 l/100 km (Petrol)
Audi Q3 TFSI Quattro: 6.9 l/100 km (Petrol)
Škoda Kodiaq Sportline: 6.9 l/100 km (Petrol)
VW Tiguan R-Line 2.0 TSI: 7.1 l/100 km (Petrol)
Audi Q5 40 TDI S Line: 7.4 l/100 km (Diesel)
Audi RS3 Sportback : 8.1 l/100 km (Petrol)

Data as of 2025

Check out the vehicle selection here!

As you can see, smaller models with lower engine power consume the least fuel. However, some larger vehicles also manage to impress in terms of efficiency. Diesel SUVs like the BMW X5 or Audi Q5, for example, offer a good balance of size, power, and fuel consumption.