The most fuel-efficient petrol, diesel and hybrid cars: Luxury sedans 2025
The petrol, diesel and hybrid (non-plug-in) cars registered in the EU in 2025 with the lowest official fuel consumption.
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Clear filter- 1
Audi A7 Sportback
Hybrid · 201 hp · 160 g/km CO₂
6.1 l
per 100 km · 39 mpg
- 2
BMW 740d xDrive
Hybrid · 282 hp · 164 g/km CO₂
6.3 l
per 100 km · 37 mpg
- 3
Mercedes-Benz S 350 D
Hybrid · 308 hp · 173 g/km CO₂
6.6 l
per 100 km · 36 mpg
- 4
Audi A8
Hybrid · 282 hp · 192 g/km CO₂
7.4 l
per 100 km · 32 mpg
- 5
Porsche Panamera
Petrol · 349 hp · 237 g/km CO₂
10.2 l
per 100 km · 23 mpg
How it's calculated
Official type-approval data for the new passenger cars registered in the European Union, published by the European Environment Agency. One spot per model (its best version), and only versions with at least 30 registrations, to rule out errors in the records. Combined WLTP consumption in litres per 100 km (mpg in US gallons). Plug-in hybrids are not included: their official consumption depends on how often they are charged.
Each model's body type (SUV, hatchback, sedan…) and size come from its Wikidata classification and our own review of the best-sellers; models without a type yet only appear under “All”.
Source: European Environment Agency (EEA), “Monitoring of CO2 emissions from passenger cars”, CC BY 4.0 licence. 2025 data (provisional), imported on September 24, 2026. We automatically check for new data every 6 hours (last check: September 25, 2026 at 02:17 PM GMT+2). This is the type-approval data declared by manufacturers and it may contain errors.