Car comparison

Ferrari Portofino M 3.9 V8vsBMW M8 Convertible (F91) Competition 4.4 V8

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

New comparison

Ferrari Portofino M

3.9 V8

620 hp3855 ccGasolineRWDDual-clutchTwin-turboCabriolet / convertible2020-2023
VS

BMW M8 Convertible (F91)

Competition 4.4 V8

625 hp4395 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2019-2022

Comparison overview

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

Best choices

Ferrari Portofino M 3.9 V8

  • Fastest top speed
    330 km/h
    205 mph Unrestricted
    320 km/h
    199 mph Restricted
  • Highest torque
    760 Nm
    561 lb-ft
  • Lightest
    1,545 kg
    3,406 lb
  • Best power-to-weight
    401 hp/t
    299 kW/t
    2.5 kg/hp
  • Best estimated range
    708 km
    440 mi
  • Best overall score
    78/100
  • Best performance score
    94/100

BMW M8 Convertible (F91) Competition 4.4 V8

  • Quickest 0-100 km/h
    3.3 s
  • Most powerful
    625 hp
    466 kW
  • Lowest combined fuel consumption
    10.8 L/100 km
    21.8 mpg US
    26.2 mpg UK
  • Largest trunk
    350 L
  • Best economy score
    78/100
  • Best practicality score
    48/100

Specification comparison

Specification comparison
ModelFerrariPortofino M3.9 V8BMWM8 Convertible (F91)Competition 4.4 V8
Power
620hp462kW
625hp466kW
Torque
760Nm561lb-ft
750Nm553lb-ft
Curb weight
1,545kg3,406lb
2,010kg4,431lb
Gross weight-
2,440kg5,379lb
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
57.0s99% target: 327 km/h / 203 mph
Calculated
39.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.5s
3.3s
0-200 km/h
9.8s
11.1s
0-60 mph
3.3s
Calculated
3.1s
Calculated
Fuel consumption
11.3L/100 km20.8mpg US25.0mpg UK
10.8L/100 km21.8mpg US26.2mpg UK
Fuel consumption city-
15.2L/100 km15.5mpg US18.6mpg UK
Fuel consumption highway-
8.3L/100 km28.3mpg US34.0mpg UK
Quarter mile
11.1s
Calculated
11.2s
Calculated
Power-to-weight
401hp/t299kW/t182hp/1000 lb
Calculated
311hp/t232kW/t141hp/1000 lb
Calculated
Torque-to-weight
492Nm/t329lb-ft/ton
Calculated
373Nm/t250lb-ft/ton
Calculated
Estimated range
708km440mi
Calculated
630km391mi
Calculated
Displacement
3,855cc235cu in
4,395cc268cu in
Length
4,594mm181in
4,867mm192in
Width
1,938mm76in
1,907mm75in
Height
1,318mm52in
1,353mm53in
Wheelbase
2,670mm105in
2,827mm111in
Front track
1,633mm64in
1,627mm64in
Rear track
1,635mm64in
1,632mm64in
Trunk volume
292L
-
Max trunk volume-
350L
Doors
2
2
Seats
4
4
Fuel tank
80L
68L
CO2 emissions-
246g/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.

Ferrari Portofino M 3.9 V8BMW M8 Convertible (F91) Competition 4.4 V8PowerTorque
  • Ferrari Portofino M 3.9 V8: Power / Torque
  • BMW M8 Convertible (F91) Competition 4.4 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
FerrariPortofino M3.9 V85,750-7,500 rpm3,000-5,750 rpm7,750 rpm
BMWM8 Convertible (F91)Competition 4.4 V86,000 rpm1,800-5,800 rpm6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricFerrariPortofino M3.9 V8BMWM8 Convertible (F91)Competition 4.4 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
3.3 s
3.1 s
0-100 km/h
0-62 mph
3.5 s
3.3 s
0-200 km/h
0-124 mph
9.8 s
11.1 s
0-200 mph
0-322 km/h
44.8 s
-
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
1.9 s
1.8 s
330 ft
101 m
4.9 s
4.8 s
1/8 mile
201 m
7.3 s
7.3 s
1000 ft
305 m
9.4 s
9.4 s
1/4 mile
402 m
11.1 s
11.2 s
Trap speed
1/4 mile
402 m
214 km/h
133 mph
201 km/h
125 mph

Power comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
620 hp
462 kW
BMWM8 Convertible (F91)Competition 4.4 V8
625 hp
466 kW

BMW M8 Convertible (F91) Competition 4.4 V8 has 5 hp more than Ferrari Portofino M 3.9 V8.

The biggest power difference is between Ferrari Portofino M 3.9 V8 and BMW M8 Convertible (F91) Competition 4.4 V8: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
760 Nm
561 lb-ft
BMWM8 Convertible (F91)Competition 4.4 V8
750 Nm
553 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
1,545 kg
3,406 lb
BMWM8 Convertible (F91)Competition 4.4 V8
2,010 kg
4,431 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
BMWM8 Convertible (F91)Competition 4.4 V8
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V83.5 s
BMWM8 Convertible (F91)Competition 4.4 V83.3 s

The biggest 0-100 km/h difference is between BMW M8 Convertible (F91) Competition 4.4 V8 and Ferrari Portofino M 3.9 V8: 0.2 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
BMWM8 Convertible (F91)Competition 4.4 V8
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

The biggest fuel consumption difference is between BMW M8 Convertible (F91) Competition 4.4 V8 and Ferrari Portofino M 3.9 V8: 0.5 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
FerrariPortofino M3.9 V8
401 hp/t
299 kW/t
2.5 kg/hp
BMWM8 Convertible (F91)Competition 4.4 V8
311 hp/t
232 kW/t
3.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
FerrariPortofino M3.9 V8
708 km
440 mi
BMWM8 Convertible (F91)Competition 4.4 V8
630 km
391 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
FerrariPortofino M3.9 V8
620 hp
462 kW
3.5 s
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
BMWM8 Convertible (F91)Competition 4.4 V8
625 hp
466 kW
3.3 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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
FerrariPortofino M3.9 V8
Power
620 hp
462 kW
0-100 km/h3.5 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Doors/seats
2 doors
4 seats
Trunk
292 L
10.3 cu ft
Length
4,594 mm
180.9 in
Height
1,318 mm
51.9 in
BMWM8 Convertible (F91)Competition 4.4 V8
Power
625 hp
466 kW
0-100 km/h3.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
350 L
12.4 cu ft
Length
4,867 mm
191.6 in
Height
1,353 mm
53.3 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
FerrariPortofino M3.9 V8
Power
620 hp
462 kW
0-100 km/h3.5 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
BMWM8 Convertible (F91)Competition 4.4 V8
Power
625 hp
466 kW
0-100 km/h3.3 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Ferrari Portofino M 3.9 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
FerrariPortofino M3.9 V8
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
3.5 s
BMWM8 Convertible (F91)Competition 4.4 V8
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
3.3 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
FerrariPortofino M3.9 V8
401 hp/t
299 kW/t
2.5 kg/hp
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
BMWM8 Convertible (F91)Competition 4.4 V8
311 hp/t
232 kW/t
3.2 kg/hp
10.8 L/100 km
21.8 mpg US
26.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleFerrariPortofino M3.9 V8BMWM8 Convertible (F91)Competition 4.4 V8
Power
620 hp
462 kW
625 hp
466 kW
Torque
760 Nm
561 lb-ft
750 Nm
553 lb-ft
Acceleration
3.5 s
3.3 s
Top speed
Unrestricted
330 km/h205 mph
Restricted
320 km/h199 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,545 kg
3,406 lb
2,010 kg
4,431 lb
Fuel consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK
10.8 L/100 km
21.8 mpg US
26.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
292 L
10.3 cu ft
Length
4,594 mm
180.9 in
Height
1,318 mm
51.9 in
Doors/seats
2 doors
4 seats
Trunk
350 L
12.4 cu ft
Length
4,867 mm
191.6 in
Height
1,353 mm
53.3 in
Range score
708 km
440 mi
630 km
391 mi
CO2 score
-
246 g/km
Trunk score
292 L
10.3 cu ft
350 L
12.4 cu ft
Power-to-weight score
401 hp/t
299 kW/t
2.5 kg/hp
311 hp/t
232 kW/t
3.2 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
VehicleFerrari Portofino M 3.9 V8BMW M8 Convertible (F91) Competition 4.4 V8
Consumption11.3 L/100 km20.8 mpg US25 mpg UK10.8 L/100 km21.8 mpg US26.2 mpg UK
Cost / 100 km19.78 LC100 km18.90 LC100 km
Cost / 100 mi31.82 LC100 mi30.42 LC100 mi
Annual fuel used1,695 L448 US gal373 UK gal1,620 L428 US gal356 UK gal
Annual fuel cost2,966 LC/year2,835 LC/year

Head-to-head comparisons

Ferrari Portofino M 3.9 V8

  • Has 10 Nm more
  • Is 465 kg lighter
  • Has 70 km/h (43 mph) higher top speed
  • Has 90 hp/t better power-to-weight
  • Has 78 km (49 mi) more estimated range

Pros

  • Highest top speed
  • Highest torque
  • Lightest
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk

BMW M8 Convertible (F91) Competition 4.4 V8

  • Has 5 hp more
  • Is 0.2 s quicker from 0-100 km/h
  • Uses 0.5 L/100 km less fuel
  • Has 58 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Ferrari Portofino M 3.9 V8
BMW M8 Convertible (F91) Competition 4.4 V8
Compare selected cars
2 vehicles selected

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