Car comparison

Porsche 718 Spyder (982) RS 4.0vsBMW M4 Convertible (G83) Competition 3.0

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

New comparison

Porsche 718 Spyder (982)

RS 4.0

500 hp3996 ccGasolineRWDDual-clutchNaturally aspiratedCabriolet / convertible2023-present
VS

BMW M4 Convertible (G83)

Competition 3.0

510 hp2993 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2021-2024

Comparison overview

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

Best choices

BMW M4 Convertible (G83) Competition 3.0

  • Most powerful
    510 hp
    380 kW
  • Highest torque
    650 Nm
    479 lb-ft
  • Lowest combined fuel consumption
    10.2 L/100 km
    23.1 mpg US
    27.7 mpg UK
  • Best estimated range
    578 km
    359 mi
  • Largest trunk
    300 L
  • Best overall score
    71/100
  • Best economy score
    79/100
  • Best practicality score
    45/100

Porsche 718 Spyder (982) RS 4.0

  • Quickest 0-100 km/h
    3.4 s
  • Fastest top speed
    308 km/h
    191 mph
  • Lightest
    1,410 kg
    3,109 lb
  • Best power-to-weight
    355 hp/t
    264 kW/t
    2.8 kg/hp
  • Best performance score
    87/100

Specification comparison

Specification comparison
ModelPorsche718 Spyder (982)RS 4.0BMWM4 Convertible (G83)Competition 3.0
Power
500hp373kW
510hp380kW
Torque
450Nm332lb-ft
650Nm479lb-ft
Curb weight
1,410kg3,109lb
1,920kg4,233lb
Gross weight
1,755kg3,869lb
2,345kg5,170lb
Top speed
308 km/h
191 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
63.1s99% target: 305 km/h / 189 mph
Calculated
49.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.4s
3.7s
0-200 km/h
10.9s
13.2s
Calculated
0-60 mph
3.2s
Calculated
3.5s
Calculated
Fuel consumption
13L/100 km18.1mpg US21.7mpg UK
10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile
11.3s
Calculated
11.8s
Calculated
Power-to-weight
355hp/t264kW/t161hp/1000 lb
Calculated
266hp/t198kW/t120hp/1000 lb
Calculated
Torque-to-weight
319Nm/t214lb-ft/ton
Calculated
339Nm/t227lb-ft/ton
Calculated
Estimated range
415km258mi
Calculated
578km359mi
Calculated
Displacement
3,996cc244cu in
2,993cc183cu in
Length
4,418mm174in
4,794mm189in
Width
1,822mm72in
1,887mm74in
Height
1,252mm49in
1,395mm55in
Wheelbase
2,482mm98in
2,857mm112in
Front track
1,545mm61in
1,617mm64in
Rear track
1,542mm61in
1,605mm63in
Ground clearance
79mm3in
121mm5in
Trunk volume
120L
300L
Max trunk volume-
385L
Doors
2
2
Seats
2
4
Fuel tank
54L
59L

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.

Porsche 718 Spyder (982) RS 4.0BMW M4 Convertible (G83) Competition 3.0PowerTorque
  • Porsche 718 Spyder (982) RS 4.0: Power / Torque
  • BMW M4 Convertible (G83) Competition 3.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Spyder (982)RS 4.08,400 rpm6,750 rpm9,000 rpm
BMWM4 Convertible (G83)Competition 3.06,250 rpm2,750-5,500 rpm7,200 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Spyder (982)RS 4.0BMWM4 Convertible (G83)Competition 3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.2 s
3.5 s
0-100 km/h
0-62 mph
3.4 s
3.7 s
0-200 km/h
0-124 mph
10.9 s
13.2 s
Top speed
308 km/h
191 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
1.8 s
1.9 s
330 ft
101 m
4.9 s
5.0 s
1/8 mile
201 m
7.3 s
7.6 s
1000 ft
305 m
9.5 s
9.9 s
1/4 mile
402 m
11.3 s
11.8 s
Trap speed
1/4 mile
402 m
203 km/h
126 mph
191 km/h
119 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
500 hp
373 kW
BMWM4 Convertible (G83)Competition 3.0
510 hp
380 kW

BMW M4 Convertible (G83) Competition 3.0 has 10 hp more than Porsche 718 Spyder (982) RS 4.0.

The biggest power difference is between Porsche 718 Spyder (982) RS 4.0 and BMW M4 Convertible (G83) Competition 3.0: 10 hp (7 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
450 Nm
332 lb-ft
BMWM4 Convertible (G83)Competition 3.0
650 Nm
479 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
1,410 kg
3,109 lb
BMWM4 Convertible (G83)Competition 3.0
1,920 kg
4,233 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
308 km/h
191 mph
BMWM4 Convertible (G83)Competition 3.0
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
Porsche718 Spyder (982)RS 4.03.4 s
BMWM4 Convertible (G83)Competition 3.03.7 s

Although BMW M4 Convertible (G83) Competition 3.0 has more power, Porsche 718 Spyder (982) RS 4.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 718 Spyder (982) RS 4.0 and BMW M4 Convertible (G83) Competition 3.0: 0.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
BMWM4 Convertible (G83)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK

The biggest fuel consumption difference is between BMW M4 Convertible (G83) Competition 3.0 and Porsche 718 Spyder (982) RS 4.0: 2.8 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
Porsche718 Spyder (982)RS 4.0
355 hp/t
264 kW/t
2.8 kg/hp
BMWM4 Convertible (G83)Competition 3.0
266 hp/t
198 kW/t
3.8 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Spyder (982)RS 4.0
415 km
258 mi
BMWM4 Convertible (G83)Competition 3.0
578 km
359 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Spyder (982)RS 4.0
500 hp
373 kW
3.4 s
308 km/h
191 mph
BMWM4 Convertible (G83)Competition 3.0
510 hp
380 kW
3.7 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
Porsche718 Spyder (982)RS 4.0
Power
500 hp
373 kW
0-100 km/h3.4 s
Top speed
308 km/h
191 mph
Doors/seats
2 doors
2 seats
Trunk
120 L
4.2 cu ft
Length
4,418 mm
173.9 in
Height
1,252 mm
49.3 in
BMWM4 Convertible (G83)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,794 mm
188.7 in
Height
1,395 mm
54.9 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
Porsche718 Spyder (982)RS 4.0
Power
500 hp
373 kW
0-100 km/h3.4 s
Top speed
308 km/h
191 mph
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
BMWM4 Convertible (G83)Competition 3.0
Power
510 hp
380 kW
0-100 km/h3.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
10.2 L/100 km
23.1 mpg US
27.7 mpg UK

BMW M4 Convertible (G83) Competition 3.0 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
Porsche718 Spyder (982)RS 4.0
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
3.4 s
BMWM4 Convertible (G83)Competition 3.0
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
3.7 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
Porsche718 Spyder (982)RS 4.0
355 hp/t
264 kW/t
2.8 kg/hp
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
BMWM4 Convertible (G83)Competition 3.0
266 hp/t
198 kW/t
3.8 kg/hp
10.2 L/100 km
23.1 mpg US
27.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Spyder (982)RS 4.0BMWM4 Convertible (G83)Competition 3.0
Power
500 hp
373 kW
510 hp
380 kW
Torque
450 Nm
332 lb-ft
650 Nm
479 lb-ft
Acceleration
3.4 s
3.7 s
Top speed
308 km/h
191 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,410 kg
3,109 lb
1,920 kg
4,233 lb
Fuel consumption
13.0 L/100 km
18.1 mpg US
21.7 mpg UK
10.2 L/100 km
23.1 mpg US
27.7 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
120 L
4.2 cu ft
Length
4,418 mm
173.9 in
Height
1,252 mm
49.3 in
Doors/seats
2 doors
4 seats
Trunk
300 L
10.6 cu ft
Length
4,794 mm
188.7 in
Height
1,395 mm
54.9 in
Range score
415 km
258 mi
578 km
359 mi
Trunk score
120 L
4.2 cu ft
300 L
10.6 cu ft
Power-to-weight score
355 hp/t
264 kW/t
2.8 kg/hp
266 hp/t
198 kW/t
3.8 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
VehiclePorsche 718 Spyder (982) RS 4.0BMW M4 Convertible (G83) Competition 3.0
Consumption13 L/100 km18.1 mpg US21.7 mpg UK10.2 L/100 km23.1 mpg US27.7 mpg UK
Cost / 100 km22.75 LC100 km17.85 LC100 km
Cost / 100 mi36.61 LC100 mi28.73 LC100 mi
Annual fuel used1,950 L515 US gal429 UK gal1,530 L404 US gal337 UK gal
Annual fuel cost3,413 LC/year2,678 LC/year

Head-to-head comparisons

Porsche 718 Spyder (982) RS 4.0

  • Is 510 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 48 km/h (30 mph) higher top speed
  • Has 89 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk

BMW M4 Convertible (G83) Competition 3.0

  • Has 10 hp more
  • Has 200 Nm more
  • Uses 2.8 L/100 km less fuel
  • Has 163 km (101 mi) more estimated range
  • Has 180 L more trunk volume

Pros

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

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Spyder (982) RS 4.0
BMW M4 Convertible (G83) Competition 3.0
Compare selected cars
2 vehicles selected

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