The most economical cars 2024 in UK and Europe

The soaring prices of petrol and diesel are prompting consumers to prioritize fuel economy and efficiency when choosing their next new car. In essence, it boils down to a straightforward cost-benefit analysis: the more economical a car is, the greater the savings on fuel with each journey made.

Given the persistent challenge of high pump prices for UK motorists, we delve into the significant matter of fuel economy below, meticulously examining the most efficient petrol, diesel, and plug-in hybrid cars currently available in the market.

Selecting an economical car involves considering various factors beyond just fuel economy. Here's a guide on how to choose an economical car:

1. Fuel Type: 

While diesel was once favored for its fuel efficiency, recent concerns over emissions have shifted preferences. Consider alternative fuel options such as petrol, hybrid, plug-in hybrid, or electric vehicles. Each has its advantages and disadvantages in terms of fuel economy, emissions, and overall cost of ownership.

2. Fuel Efficiency: 

Look for cars with high fuel efficiency ratings. This information is typically provided by manufacturers and can be found on vehicle labels or online. Compare the fuel economy ratings of different models to identify the most efficient options in your preferred category.

3. Engine Size and Type: 

Smaller engines generally consume less fuel than larger ones, so opt for a car with an engine size appropriate for your needs. Additionally, consider advanced engine technologies such as turbocharging and direct injection, which can improve fuel efficiency without sacrificing performance.

4. Transmission:

 Cars equipped with manual transmissions often offer better fuel economy compared to those with automatic transmissions. However, advancements in automatic transmission technology have narrowed this gap, so evaluate both options based on your driving preferences and efficiency requirements.

5. Vehicle Size and Weight: 

Lighter and aerodynamically streamlined vehicles tend to be more fuel-efficient. If possible, choose a smaller car or a more aerodynamic design to maximize fuel economy. Keep in mind that larger, heavier vehicles typically consume more fuel, especially in urban driving conditions.

6. Hybrid or Electric Options: 

Consider hybrid or electric vehicles, which offer excellent fuel economy and lower emissions compared to traditional internal combustion engine cars. While the initial purchase price may be higher, potential savings on fuel and maintenance costs can offset this over time.

7. Emissions:

 Pay attention to the vehicle's emissions ratings, particularly concerning pollutants such as nitrogen oxides (NOx) and particulate matter. Opt for cars with low emissions to minimize environmental impact and potentially qualify for tax incentives or rebates.

Despite recent concerns, new diesel cars are notably clean, making them a viable option for those who frequently travel long distances. Modern diesel engines often achieve excellent fuel efficiency, with many easily surpassing 50 miles per gallon (mpg) on motorways. However, potential buyers should ensure that their annual mileage justifies the higher upfront cost and the additional expense at the pump, as diesel engines typically come with a price premium.

While sales of diesel cars in the UK have declined significantly, petrol cars may present a more cost-effective solution for many buyers. Advances in hybrid technology have greatly improved the efficiency of modern petrol models, and plug-in hybrid cars offer the added advantage of a substantial electric-only range.

However, it's essential to be aware that the impressive fuel economy figures advertised for plug-in hybrids (PHEVs) are often challenging to replicate in real-world driving conditions, especially on longer journeys where reliance on the internal combustion engine is necessary. When used for shorter trips and regularly charged, PHEVs can deliver exceptional fuel efficiency.

It's important to note that electric cars have been excluded from this discussion. However, our 'best electric cars' list provides comprehensive guidance for selecting the right electric vehicle.

All vehicles listed here have undergone testing under the latest Worldwide Harmonized Light Vehicles Test Procedure (WLTP), which replaced the outdated New European Driving Cycle (NEDC) system. The WLTP aims to provide consumers with more accurate and realistic fuel economy figures representative of real-world driving conditions.

Most economical diesel cars

1. Peugeot 208 1.5 BlueHDi (100) Allure Premium manual – 72.2mpg