Hybrid cars with the best power-to-weight ratio: Executive sedans 2025
The less weight each horsepower has to move, the faster a car accelerates. These are the new cars registered in the EU in 2025 with the best power-to-weight ratio.
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Audi RS6 Avant
621 hp · Hybrid · 2,150 kg (4,740 lb)
3.46 kg/hp
7.63 lb/hp
- 2
Audi RS 6 Avant
621 hp · Hybrid · 2,155 kg (4,751 lb)
3.47 kg/hp
7.65 lb/hp
- 3
Audi RS 6 GT Avant
621 hp · Hybrid · 2,152 kg (4,744 lb)
3.47 kg/hp
7.64 lb/hp
- 4
Audi RS 7 Sportback
621 hp · Hybrid · 2,166 kg (4,775 lb)
3.49 kg/hp
7.69 lb/hp
- 5
Mercedes-Benz E 450 4MATIC
375 hp · Hybrid · 1,990 kg (4,387 lb)
5.30 kg/hp
11.68 lb/hp
- 6
Audi A6 Limousine
362 hp · Hybrid · 2,056 kg (4,533 lb)
5.68 kg/hp
12.52 lb/hp
- 7
Audi S4 Avant
337 hp · Hybrid · 1,910 kg (4,211 lb)
5.67 kg/hp
12.51 lb/hp
- 8
Audi A6 Allroad quattro
335 hp · Hybrid · 1,949 kg (4,297 lb)
5.81 kg/hp
12.82 lb/hp
- 9
Audi S6 Limousine
339 hp · Hybrid · 2,032 kg (4,480 lb)
5.99 kg/hp
13.20 lb/hp
- 10
Maserati Ghibli GT Hybrid
326 hp · Hybrid · 1,953 kg (4,306 lb)
5.99 kg/hp
13.21 lb/hp
- 11
Volvo V90
306 hp · Plug-in hybrid · 2,075 kg (4,575 lb)
6.79 kg/hp
14.96 lb/hp
- 12
BMW 540d xDrive
282 hp · Hybrid · 2,028 kg (4,471 lb)
7.20 kg/hp
15.88 lb/hp
- 13
Lexus ES300H
176 hp · Hybrid · 1,755 kg (3,869 lb)
9.99 kg/hp
22.02 lb/hp
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. Ratio = mass in running order (kg) divided by power (hp).
By powertrain, based on each version's official type approval: “Combustion” covers petrol, diesel, LPG, CNG and ethanol; “Hybrids”, both regular and plug-in hybrids; “Electric”, fully electric cars. With a powertrain selected, each model appears with its best version of that powertrain.
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.