The Comparative Analysis :

BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..) vs. Porsche 911 Carrera Convertible 4 GTS (17 - 18)

€ 176,000
BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..) BMW M8 Competition Cabrio
€ 146,200
 Porsche 911 Carrera Convertible 4 GTS (17 - 18) Porsche 911 Carrera Convertible 4 GTS
€ 176,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 146,200

ⓘ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 13.3 inches longer, 2.2 inches wider and 2.4 inches taller than the Porsche 911 Carrera Convertible 4 GTS.
BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
53.3
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
75.1
84.1
50.9
Blueprint Porsche 911 Carrera Convertible 4 GTS (17 - 18)
72.9
77.9
75.1 in
Width
72.9 in
84.1 in
Width Incl. Mirrors
77.9 in
53.3 in
Height
50.9 in
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
111.3
191.6
Blueprint Porsche 911 Carrera Convertible 4 GTS (17 - 18)
96.5
178.3
191.6 in
Length
178.3 in
111.3 in
Wheelbase
96.5 in

Vehicle Weight

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
4597 lb
Curb Weight
3616 lb
5379 lb
Gross Vehicle
Weight
4409 lb
BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
Weight Difference:
981 lb
21.34 %
Porsche 911 Carrera Convertible 4 GTS (17 - 18)

General

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
G14
Generation
991
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Premium Unleaded
Permanent all-wheel drive (AWD)
Drivetrain
Permanent all-wheel drive (AWD)
8-speed automatic transmission
Transmission
7-speed manual transmission

Engine

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
6-cylinder boxer gasoline engine with two tur­bo­chargers (bi­turbo)
BMW S63
Engine Series
S63-B44
Engine Code
4
Valves
4
8
Cylinders
6
4.4 L / 215 cu in
Displacement
3 L / 147 cu in
616 hp
at 6000 rpm
Power
444 hp
at 6500 rpm
BMW M8 Competition Cabrio
616 hp
444 hp
Porsche 911 Carrera Convertible 4 GTS
553 lb‑ft
at 1800 rpm
Max. Torque
406 lb‑ft
at 2150 rpm
BMW M8 Competition Cabrio
553 lb‑ft
406 lb‑ft
Porsche 911 Carrera Convertible 4 GTS

Performance

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
155 mph
Maximum Speed
191 mph
3.3 sec
Acceleration 0 to 62 mph
4.1 sec
62 mph 62
mph

151 ft
0.000 sec

BMW M8 Competition Cabrio

62 mph 62
mph

187 ft
0.000 sec

Porsche 911 Carrera Convertible 4 GTS

▶ REPLAY
7.46 lb/hp
Weight-to-Power Ratio
8.14 lb/hp
BMW M8 Competition Cabrio
7.46 lb/hp
8.14 lb/hp
Porsche 911 Carrera Convertible 4 GTS

Fuel Economy / Emissions

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
Fuel Economy
22 mpg
combined
24 mpg
BMW M8 Competition Cabrio
22 mpg
24 mpg
Porsche 911 Carrera Convertible 4 GTS
No data
city
18 mpg
No data
highway
31 mpg
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
391 mi
Range
429 mi
BMW M8 Competition Cabrio
391 mi
429 mi
Porsche 911 Carrera Convertible 4 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).
183.8 kWh
BMW M8 Competition Cabrio
204.5 kWh
183.8 kWh
Porsche 911 Carrera Convertible 4 GTS
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 6c (NEFZ) 36ZA-ZF
410 g/mi (WLTP)
CO2 Emissions
354 g/mi (NEFZ)

Practical Convenience

BMW M8 Competition Cabrio
Porsche 911 Carrera Convertible 4 GTS
2
Doors
2
4
No. of Seats
4
783 lb
Maximum Payload
794 lb
9.9 cu ft
Trunk Volume
3.5 cu ft
No data
Cargo Volume (Seats Down)
No data