Combustion cars with the best power-to-weight ratio: Sports cars 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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1
Ktm X-Bow GT-XR
493 hp · Petrol · 1,250 kg (2,756 lb)
2.53 kg/hp
5.58 lb/hp
2
Porsche 911 Turbo 50
641 hp · Petrol · 1,715 kg (3,781 lb)
2.68 kg/hp
5.90 lb/hp
3
Aston Martin Vantage
656 hp · Petrol · 1,819 kg (4,010 lb)
2.77 kg/hp
6.12 lb/hp
4
Porsche 911 S T
518 hp · Petrol · 1,455 kg (3,208 lb)
2.81 kg/hp
6.20 lb/hp
5
Aston Martin DB12
671 hp · Petrol · 1,900 kg (4,189 lb)
2.83 kg/hp
6.25 lb/hp
6
Ferrari Roma Spider
612 hp · Petrol · 1,780 kg (3,924 lb)
2.91 kg/hp
6.42 lb/hp
7
Dodge Challenger Srt Hellcat
717 hp · Petrol · 2,104 kg (4,639 lb)
2.93 kg/hp
6.47 lb/hp
8
Porsche 911 GT3 RS
518 hp · Petrol · 1,526 kg (3,364 lb)
2.95 kg/hp
6.50 lb/hp
9
Aston Martin DB12 Volante
671 hp · Petrol · 2,006 kg (4,422 lb)
2.99 kg/hp
6.60 lb/hp
10
Porsche 718 Spyder RS
493 hp · Petrol · 1,485 kg (3,274 lb)
3.01 kg/hp
6.63 lb/hp
11
Porsche 718 Cayman GT4 RS
493 hp · Petrol · 1,490 kg (3,285 lb)
3.02 kg/hp
6.66 lb/hp
12
Mercedes-Benz AMG GT 63 PRO 4Matic+
603 hp · Petrol · 1,949 kg (4,297 lb)
3.23 kg/hp
7.12 lb/hp
13
BMW M4 CS
543 hp · Petrol · 1,835 kg (4,045 lb)
3.38 kg/hp
7.45 lb/hp
14
BMW M2 CS
523 hp · Petrol · 1,769 kg (3,900 lb)
3.38 kg/hp
7.46 lb/hp
15
Mercedes-Benz AMG SL 63 4Matic+
577 hp · Petrol · 1,970 kg (4,343 lb)
3.42 kg/hp
7.53 lb/hp
16
Maserati Granturismo Trofeo
542 hp · Petrol · 1,870 kg (4,123 lb)
3.45 kg/hp
7.61 lb/hp
17
BMW M3 CS
543 hp · Petrol · 1,916 kg (4,224 lb)
3.53 kg/hp
7.78 lb/hp
18
BMW M4 Competition M xDrive G82 S5
523 hp · Petrol · 1,850 kg (4,079 lb)
3.54 kg/hp
7.80 lb/hp
19
Mercedes-Benz Maybach SL 680
577 hp · Petrol · 2,050 kg (4,519 lb)
3.56 kg/hp
7.84 lb/hp
20
BMW M3 Competition M xDrive Limous
523 hp · Petrol · 1,855 kg (4,090 lb)
3.55 kg/hp
7.82 lb/hp
21
Morgan Plus Six
335 hp · Petrol · 1,220 kg (2,690 lb)
3.64 kg/hp
8.02 lb/hp
22
Maserati Grancabrio Trofeo
542 hp · Petrol · 1,970 kg (4,343 lb)
3.64 kg/hp
8.02 lb/hp
23
Alpina Bmw Alpina B4 GT
522 hp · Petrol · 1,965 kg (4,332 lb)
3.77 kg/hp
8.30 lb/hp
24
BMW M2
473 hp · Petrol · 1,802 kg (3,973 lb)
3.81 kg/hp
8.39 lb/hp
25
Porsche 718 Cayman GTS
394 hp · Petrol · 1,499 kg (3,305 lb)
3.80 kg/hp
8.38 lb/hp
26
Porsche 718 Boxster GTS
394 hp · Petrol · 1,507 kg (3,322 lb)
3.82 kg/hp
8.43 lb/hp
27
Maserati Granturismo Modena
484 hp · Petrol · 1,870 kg (4,123 lb)
3.86 kg/hp
8.52 lb/hp
28
Lotus Emira
400 hp · Petrol · 1,549 kg (3,415 lb)
3.88 kg/hp
8.55 lb/hp
29
Chevrolet Camaro SS
455 hp · Petrol · 1,770 kg (3,902 lb)
3.89 kg/hp
8.58 lb/hp
30
Alpine A110R
296 hp · Petrol · 1,161 kg (2,560 lb)
3.92 kg/hp
8.64 lb/hp
31
Audi RS4 Avant
464 hp · Petrol · 1,820 kg (4,012 lb)
3.92 kg/hp
8.65 lb/hp
32
BMW M850I xDrive
523 hp · Petrol · 2,081 kg (4,588 lb)
3.98 kg/hp
8.77 lb/hp
33
Caterham Seven S3
170 hp · Petrol · 680 kg (1,499 lb)
3.99 kg/hp
8.80 lb/hp
34
Alpine A110
296 hp · Petrol · 1,183 kg (2,608 lb)
3.99 kg/hp
8.80 lb/hp
35
Ford Mustang
448 hp · Petrol · 1,885 kg (4,156 lb)
4.21 kg/hp
9.28 lb/hp
36
Honda Civic Type R
325 hp · Petrol · 1,480 kg (3,263 lb)
4.56 kg/hp
10.05 lb/hp
37
Toyota Supra
335 hp · Petrol · 1,583 kg (3,490 lb)
4.72 kg/hp
10.41 lb/hp
38
BMW Z4 M40I
335 hp · Petrol · 1,637 kg (3,609 lb)
4.88 kg/hp
10.76 lb/hp
39
Jaguar F-Type
296 hp · Petrol · 1,688 kg (3,721 lb)
5.70 kg/hp
12.56 lb/hp
40
Subaru Brz
231 hp · Petrol · 1,352 kg (2,981 lb)
5.86 kg/hp
12.92 lb/hp
41
Mazda MX-5
181 hp · Petrol · 1,125 kg (2,480 lb)
6.21 kg/hp
13.70 lb/hp
42
Fiat Abarth 500
177 hp · Petrol · 1,142 kg (2,518 lb)
6.45 kg/hp
14.22 lb/hp
43
BMW 430i xDrive
241 hp · Petrol · 1,778 kg (3,920 lb)
7.37 kg/hp
16.24 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.