The Comparative Analysis :

BMW M8 Competition Cabrio xDrive Steptronic Sport (19 - ..) vs. Porsche 911 Carrera Cabriolet GTS (17 - 18)

€ 176,000
BMW M8 Competition Cabrio xDrive Steptronic Sport (19 - ..) BMW M8 Competition Cabrio
€ 138,900
 Porsche 911 Carrera Cabriolet GTS (17 - 18) Porsche 911 Carrera Cabriolet GTS
€ 176,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 138,900

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The BMW M8 Competition Cabrio is considerably bigger in every dimension. It's 33.9 cm longer, 5.5 cm wider and 6.2 cm taller than the Porsche 911 Carrera Cabriolet GTS.
BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
1353
Blueprint BMW M8 Competition Cabrio xDrive Steptronic Sport (19 - ..)
1907
2137
1291
Blueprint Porsche 911 Carrera Cabriolet GTS (17 - 18)
1852
1978
1907 mm
Width
1852 mm
2137 mm
Width Incl. Mirrors
1978 mm
1353 mm
Height
1291 mm
Blueprint BMW M8 Competition Cabrio xDrive Steptronic Sport (19 - ..)
2827
4867
Blueprint Porsche 911 Carrera Cabriolet GTS (17 - 18)
2450
4528
4867 mm
Length
4528 mm
2827 mm
Wheelbase
2450 mm

Vehicle Weight

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
2085 kg
Kerb Weight
1595 kg
2440 kg
Gross Vehicle
Weight
1970 kg
BMW M8 Competition Cabrio xDrive Steptronic Sport (19 - ..)
Weight Difference:
490 kg
23.5 %
Porsche 911 Carrera Cabriolet GTS (17 - 18)

General

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
G14
Generation
991
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed manual transmission

Engine

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
V8 petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer petrol engine with two tur­bo­chargers (bi­turbo)
BMW S63
Engine Series
S63-B44
Engine Code
4
Valves
4
8
Cylinders
6
4395 CC
Engine Capacity
2981 CC
616 bhp
at 6000 rpm
Power
444 bhp
at 6500 rpm
BMW M8 Competition Cabrio
616 bhp
444 bhp
Porsche 911 Carrera Cabriolet GTS
750 NM
at 1800 rpm
Max. Torque
550 NM
at 2150 rpm
BMW M8 Competition Cabrio
750 NM
550 NM
Porsche 911 Carrera Cabriolet GTS

Performance

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
155 mph
Maximum Speed
193 mph
3.3 sec
Acceleration 0 to 62 mph
4.2 sec
62 mph 62
mph

46 m
0.000 sec

BMW M8 Competition Cabrio

62 mph 62
mph

58 m
0.000 sec

Porsche 911 Carrera Cabriolet GTS

▶ REPLAY
3.38 kg/bhp
Weight-to-Power Ratio
3.59 kg/bhp
BMW M8 Competition Cabrio
3.38 kg/bhp
3.59 kg/bhp
Porsche 911 Carrera Cabriolet GTS

Fuel Economy / Emissions

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
Fuel Economy
26 mpg
combined
30 mpg
BMW M8 Competition Cabrio
26 mpg
30 mpg
Porsche 911 Carrera Cabriolet GTS
No data
city
22 mpg
No data
motorway
39 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
64 L
Kraftstoffanzeige
391 mi
Range
423 mi
BMW M8 Competition Cabrio
391 mi
423 mi
Porsche 911 Carrera Cabriolet GTS
Environmental Impact
204.5 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
178.2 kWh
BMW M8 Competition Cabrio
204.5 kWh
178.2 kWh
Porsche 911 Carrera Cabriolet GTS
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
255 g/km (WLTP)
CO2 Emissions
214 g/km (NEFZ)

Practical Convenience

BMW M8 Competition Cabrio
Porsche 911 Carrera Cabriolet GTS
2
Doors
2
4
No. of Seats
4
355 kg
Maximum Payload
375 kg
350 L
Boot Capacity
125 L
No data
Boot Capacity (Seats Down)
No data