The Comparative Analysis :

BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..) vs. Porsche 911 Turbo Convertible (09 - 13)

€ 176,000
BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..) BMW M8 Competition Cabrio
€ 161,700
 Porsche 911 Turbo Convertible (09 - 13) Porsche 911 Turbo Convertible
€ 176,000
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 161,700

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

Vehicle Dimensions

The BMW M8 Competition Cabrio is significantly bigger in every dimension. It's 16.4 inches longer, 2.2 inches wider and 2.1 inches taller than the Porsche 911 Turbo Convertible.
BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
53.3
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
75.1
84.1
51.2
Blueprint Porsche 911 Turbo Convertible (09 - 13)
72.9
80.8
75.1 in
Width
72.9 in
84.1 in
Width Incl. Mirrors
80.8 in
53.3 in
Height
51.2 in
Blueprint BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
111.3
191.6
Blueprint Porsche 911 Turbo Convertible (09 - 13)
92.5
175.2
191.6 in
Length
175.2 in
111.3 in
Wheelbase
92.5 in

Vehicle Weight

BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
4597 lb
Curb Weight
3792 lb
5379 lb
Gross Vehicle
Weight
4398 lb
BMW M8 Competition Convertible xDrive Steptronic Sport (19 - ..)
Weight Difference:
805 lb
17.51 %
Porsche 911 Turbo Convertible (09 - 13)

General

BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
G14
Generation
997
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
6-speed manual transmission

Engine

BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
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
3.8 L / 186 cu in
616 hp
at 6000 rpm
Power
493 hp
at 6000 rpm
BMW M8 Competition Cabrio
616 hp
493 hp
Porsche 911 Turbo Convertible
553 lb‑ft
at 1800 rpm
Max. Torque
479 lb‑ft
at 1950 rpm
BMW M8 Competition Cabrio
553 lb‑ft
479 lb‑ft
Porsche 911 Turbo Convertible

Performance

BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
155 mph
Maximum Speed
194 mph
3.3 sec
Acceleration 0 to 62 mph
3.8 sec
62 mph 62
mph

151 ft
0.000 sec

BMW M8 Competition Cabrio

62 mph 62
mph

174 ft
0.000 sec

Porsche 911 Turbo Convertible

▶ REPLAY
7.46 lb/hp
Weight-to-Power Ratio
7.69 lb/hp
BMW M8 Competition Cabrio
7.46 lb/hp
7.69 lb/hp
Porsche 911 Turbo Convertible

Fuel Economy / Emissions

BMW M8 Competition Cabrio
Porsche 911 Turbo Convertible
Fuel Economy
22 mpg
combined
20 mpg
BMW M8 Competition Cabrio
22 mpg
20 mpg
Porsche 911 Turbo Convertible
No data
city
13 mpg
No data
highway
28 mpg
Kraftstoffanzeige
18 gal
Fuel Tank Capacity
17.7 gal
Kraftstoffanzeige
391 mi
Range
356 mi
BMW M8 Competition Cabrio
391 mi
356 mi
Porsche 911 Turbo Convertible
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).
221.6 kWh
BMW M8 Competition Cabrio
204.5 kWh
221.6 kWh
Porsche 911 Turbo Convertible
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
410 g/mi (WLTP)
CO2 Emissions
443 g/mi (NEFZ)

Practical Convenience

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