Car comparison

Alpina B6 Cabrio (F12) 4.4 V8vsPorsche 911 Cabriolet (997) · Facelift 2008 Turbo S 3.8

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Alpina B6 Cabrio (F12)

4.4 V8

540 hp4395 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2012-2015
VS

Porsche 911 Cabriolet (997) · Facelift 2008

Turbo S 3.8

530 hp3800 ccGasolineAWDDual-clutchTwin-turboCabriolet / convertible2010-2011

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Alpina B6 Cabrio (F12) 4.4 V8

  • Fastest top speed
    317 km/h
    197 mph
  • Most powerful
    540 hp
    403 kW
  • Highest torque
    730 Nm
    538 lb-ft
  • Lowest combined fuel consumption
    9.6 L/100 km
    24.5 mpg US
    29.4 mpg UK
  • Lowest city consumption
    13.2 L/100 km
    17.8 mpg US
    21.4 mpg UK
  • Lowest highway consumption
    7.5 L/100 km
    31.4 mpg US
    37.7 mpg UK
  • Best estimated range
    729 km
    453 mi
  • Largest trunk
    300 L
  • Best economy score
    81/100

Specification comparison

Specification comparison
ModelAlpinaB6 Cabrio (F12)4.4 V8Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
540hp403kW
530hp395kW
Torque
730Nm538lb-ft
700Nm516lb-ft
Curb weight
2,020kg4,453lb
1,660kg3,660lb
Gross weight
2,430kg5,357lb
2,010kg4,431lb
Top speed
317 km/h
197 mph
315 km/h
196 mph
To 99% top speed
74.9s99% target: 314 km/h / 195 mph
Calculated
74.1s99% target: 312 km/h / 194 mph
Calculated
0-100 km/h
4.4s
3.4s
0-200 km/h
13.2s
Calculated
11.3s
0-60 mph
4.2s
Calculated
3.2s
Calculated
Fuel consumption
9.6L/100 km24.5mpg US29.4mpg UK
11.5L/100 km20.5mpg US24.6mpg UK
Fuel consumption city
13.2L/100 km17.8mpg US21.4mpg UK
16.7L/100 km14.1mpg US16.9mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
12.3s
Calculated
11.3s
Calculated
Power-to-weight
267hp/t199kW/t121hp/1000 lb
Calculated
319hp/t238kW/t145hp/1000 lb
Calculated
Torque-to-weight
361Nm/t242lb-ft/ton
Calculated
422Nm/t282lb-ft/ton
Calculated
Estimated range
729km453mi
Calculated
583km362mi
Calculated
Displacement
4,395cc268cu in
3,800cc232cu in
Length
4,894mm193in
4,450mm175in
Width
1,894mm75in
1,852mm73in
Height
1,373mm54in
1,300mm51in
Wheelbase
2,855mm112in
2,350mm93in
Front track
1,594mm63in
-
Rear track
1,637mm64in
-
Trunk volume
300L
-
Max trunk volume
350L
105L
Doors
2
2
Seats
4
4
Fuel tank
70L
67L
CO2 emissions
224g/km
-

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Alpina B6 Cabrio (F12) 4.4 V8Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8PowerTorque
  • Alpina B6 Cabrio (F12) 4.4 V8: Power / Torque
  • Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AlpinaB6 Cabrio (F12)4.4 V85,200-6,250 rpm2,800-5,000 rpm6,500 rpm
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.86,250-6,750 rpm2,100-4,250 rpm7,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlpinaB6 Cabrio (F12)4.4 V8Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.2 s
3.2 s
0-100 km/h
0-62 mph
4.4 s
3.4 s
0-200 km/h
0-124 mph
13.2 s
11.3 s
Top speed
317 km/h
197 mph
315 km/h
196 mph
Drag race simulation
60 ft
18 m
2.1 s
1.8 s
330 ft
101 m
5.5 s
4.8 s
1/8 mile
201 m
8.1 s
7.4 s
1000 ft
305 m
10.4 s
9.5 s
1/4 mile
402 m
12.3 s
11.3 s
Trap speed
1/4 mile
402 m
193 km/h
120 mph
200 km/h
124 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
540 hp
403 kW
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
530 hp
395 kW

Alpina B6 Cabrio (F12) 4.4 V8 has 10 hp more than Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8.

The biggest power difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 and Alpina B6 Cabrio (F12) 4.4 V8: 10 hp (7 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
730 Nm
538 lb-ft
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
700 Nm
516 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
2,020 kg
4,453 lb
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
1,660 kg
3,660 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
317 km/h
197 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
315 km/h
196 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V84.4 s
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.83.4 s

Although Alpina B6 Cabrio (F12) 4.4 V8 has more power, Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8 and Alpina B6 Cabrio (F12) 4.4 V8: 1.0 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

The biggest fuel consumption difference is between Alpina B6 Cabrio (F12) 4.4 V8 and Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8: 1.9 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
267 hp/t
199 kW/t
3.7 kg/hp
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
319 hp/t
238 kW/t
3.1 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
AlpinaB6 Cabrio (F12)4.4 V8
729 km
453 mi
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
583 km
362 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AlpinaB6 Cabrio (F12)4.4 V8
540 hp
403 kW
4.4 s
317 km/h
197 mph
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
530 hp
395 kW
3.4 s
315 km/h
196 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
AlpinaB6 Cabrio (F12)4.4 V8
Power
540 hp
403 kW
0-100 km/h4.4 s
Top speed
317 km/h
197 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,894 mm
192.7 in
Height
1,373 mm
54.1 in
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
AlpinaB6 Cabrio (F12)4.4 V8
Power
540 hp
403 kW
0-100 km/h4.4 s
Top speed
317 km/h
197 mph
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
530 hp
395 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Alpina B6 Cabrio (F12) 4.4 V8 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
AlpinaB6 Cabrio (F12)4.4 V8
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
4.4 s
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
3.4 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
AlpinaB6 Cabrio (F12)4.4 V8
267 hp/t
199 kW/t
3.7 kg/hp
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
319 hp/t
238 kW/t
3.1 kg/hp
11.5 L/100 km
20.5 mpg US
24.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlpinaB6 Cabrio (F12)4.4 V8Porsche911 Cabriolet (997)Facelift 2008Turbo S 3.8
Power
540 hp
403 kW
530 hp
395 kW
Torque
730 Nm
538 lb-ft
700 Nm
516 lb-ft
Acceleration
4.4 s
3.4 s
Top speed
317 km/h
197 mph
315 km/h
196 mph
Lightness
2,020 kg
4,453 lb
1,660 kg
3,660 lb
Fuel consumption
9.6 L/100 km
24.5 mpg US
29.4 mpg UK
11.5 L/100 km
20.5 mpg US
24.6 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,894 mm
192.7 in
Height
1,373 mm
54.1 in
Doors/seats
2 doors
4 seats
Trunk
105 L
3.7 cu ft
Length
4,450 mm
175.2 in
Height
1,300 mm
51.2 in
Range score
729 km
453 mi
583 km
362 mi
CO2 score
224 g/km
-
Trunk score
300 L
10.6 cu ft
105 L
3.7 cu ft
Power-to-weight score
267 hp/t
199 kW/t
3.7 kg/hp
319 hp/t
238 kW/t
3.1 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleAlpina B6 Cabrio (F12) 4.4 V8Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8
Consumption9.6 L/100 km24.5 mpg US29.4 mpg UK11.5 L/100 km20.5 mpg US24.6 mpg UK
Cost / 100 km16.80 LC100 km20.13 LC100 km
Cost / 100 mi27.04 LC100 mi32.39 LC100 mi
Annual fuel used1,440 L380 US gal317 UK gal1,725 L456 US gal379 UK gal
Annual fuel cost2,520 LC/year3,019 LC/year

Head-to-head comparisons

Alpina B6 Cabrio (F12) 4.4 V8

  • Has 10 hp more
  • Has 30 Nm more
  • Has 2 km/h (1 mph) higher top speed
  • Uses 1.9 L/100 km less fuel
  • Has 147 km (91 mi) more estimated range
  • Has 195 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

Porsche 911 Cabriolet (997) Facelift 2008 Turbo S 3.8

  • Is 360 kg lighter
  • Is 1.0 s quicker from 0-100 km/h
  • Has 52 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alpina B6 Cabrio (F12) 4.4 V8
Porsche 911 Cabriolet (997) Turbo S 3.8
Compare selected cars
2 vehicles selected

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