Car comparison

Porsche 718 Cayman (982) GT4 RS 4.0vsAlpina B4 Gran Coupe (G26) 3.0

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

New comparison

Porsche 718 Cayman (982)

GT4 RS 4.0

493 hp3996 ccGasolineRWDDual-clutchNaturally aspiratedCoupe2022-present
VS

Alpina B4 Gran Coupe (G26)

3.0

495 hp2993 ccGasolineAWDAutomaticTwin-turboCoupe2022-2024

Comparison overview

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

Best choices

Alpina B4 Gran Coupe (G26) 3.0

  • Most powerful
    495 hp
    369 kW
  • Highest torque
    730 Nm
    538 lb-ft
  • Lowest combined fuel consumption
    9.8 L/100 km
    24.0 mpg US
    28.8 mpg UK
  • Best estimated range
    602 km
    374 mi
  • Largest trunk
    470 L
  • Best overall score
    80/100
  • Best performance score
    89/100
  • Best economy score
    81/100
  • Best practicality score
    61/100

Specification comparison

Specification comparison
ModelPorsche718 Cayman (982)GT4 RS 4.0AlpinaB4 Gran Coupe (G26)3.0
Power
493hp368kW
495hp369kW
Torque
449Nm331lb-ft
730Nm538lb-ft
Curb weight
1,464kg3,228lb
1,965kg4,332lb
Gross weight
1,771kg3,904lb
2,400kg5,291lb
Top speed
315 km/h
196 mph
301 km/h
187 mph
To 99% top speed
48.6s99% target: 312 km/h / 194 mph
Calculated
59.7s99% target: 298 km/h / 185 mph
Calculated
0-100 km/h
3.4s
3.7s
0-200 km/h
9.6s
Calculated
11.5s
Calculated
0-60 mph
3.3s
Calculated
3.5s
Calculated
Fuel consumption
12.3L/100 km19.1mpg US23.0mpg UK
9.8L/100 km24mpg US28.8mpg UK
Fuel consumption city-
14L/100 km16.8mpg US20.2mpg UK
Fuel consumption highway-
7.4L/100 km31.8mpg US38.2mpg UK
Quarter mile
11.0s
Calculated
11.6s
Calculated
Power-to-weight
337hp/t251kW/t153hp/1000 lb
Calculated
252hp/t188kW/t114hp/1000 lb
Calculated
Torque-to-weight
307Nm/t205lb-ft/ton
Calculated
372Nm/t249lb-ft/ton
Calculated
Estimated range
520km323mi
Calculated
602km374mi
Calculated
Displacement
3,996cc244cu in
2,993cc183cu in
Length
4,455mm175in
4,792mm189in
Width
1,822mm72in
1,850mm73in
Height
1,267mm50in
1,440mm57in
Wheelbase
2,484mm98in
2,856mm112in
Front track-
1,593mm63in
Rear track-
1,588mm63in
Ground clearance
102mm4in
-
Trunk volume-
470L
Max trunk volume
136L
1,290L
Doors
2
4
Seats
2
4
Fuel tank
64L
59L
CO2 emissions-
223g/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.

Porsche 718 Cayman (982) GT4 RS 4.0Alpina B4 Gran Coupe (G26) 3.0PowerTorque
  • Porsche 718 Cayman (982) GT4 RS 4.0: Power / Torque
  • Alpina B4 Gran Coupe (G26) 3.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Cayman (982)GT4 RS 4.08,400 rpm6,250 rpm9,000 rpm
AlpinaB4 Gran Coupe (G26)3.05,000-7,000 rpm2,500-4,500 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Cayman (982)GT4 RS 4.0AlpinaB4 Gran Coupe (G26)3.0
Acceleration checkpoints
0-60 mph
0-97 km/h
3.3 s
3.5 s
0-100 km/h
0-62 mph
3.4 s
3.7 s
0-200 km/h
0-124 mph
9.6 s
11.5 s
Top speed
315 km/h
196 mph
301 km/h
187 mph
Drag race simulation
60 ft
18 m
1.9 s
1.9 s
330 ft
101 m
4.9 s
5.1 s
1/8 mile
201 m
7.3 s
7.6 s
1000 ft
305 m
9.3 s
9.8 s
1/4 mile
402 m
11.0 s
11.6 s
Trap speed
1/4 mile
402 m
215 km/h
134 mph
200 km/h
125 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 RS 4.0
493 hp
368 kW
AlpinaB4 Gran Coupe (G26)3.0
495 hp
369 kW

Alpina B4 Gran Coupe (G26) 3.0 has 2 hp more than Porsche 718 Cayman (982) GT4 RS 4.0.

The biggest power difference is between Porsche 718 Cayman (982) GT4 RS 4.0 and Alpina B4 Gran Coupe (G26) 3.0: 2 hp (1 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 RS 4.0
449 Nm
331 lb-ft
AlpinaB4 Gran Coupe (G26)3.0
730 Nm
538 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 RS 4.0
1,464 kg
3,228 lb
AlpinaB4 Gran Coupe (G26)3.0
1,965 kg
4,332 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 Cayman (982)GT4 RS 4.0
315 km/h
196 mph
AlpinaB4 Gran Coupe (G26)3.0
301 km/h
187 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 RS 4.03.4 s
AlpinaB4 Gran Coupe (G26)3.03.7 s

Although Alpina B4 Gran Coupe (G26) 3.0 has more power, Porsche 718 Cayman (982) GT4 RS 4.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 718 Cayman (982) GT4 RS 4.0 and Alpina B4 Gran Coupe (G26) 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 Cayman (982)GT4 RS 4.0
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
AlpinaB4 Gran Coupe (G26)3.0
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

The biggest fuel consumption difference is between Alpina B4 Gran Coupe (G26) 3.0 and Porsche 718 Cayman (982) GT4 RS 4.0: 2.5 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
Porsche718 Cayman (982)GT4 RS 4.0
337 hp/t
251 kW/t
3.0 kg/hp
AlpinaB4 Gran Coupe (G26)3.0
252 hp/t
188 kW/t
4.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Porsche718 Cayman (982)GT4 RS 4.0
520 km
323 mi
AlpinaB4 Gran Coupe (G26)3.0
602 km
374 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Cayman (982)GT4 RS 4.0
493 hp
368 kW
3.4 s
315 km/h
196 mph
AlpinaB4 Gran Coupe (G26)3.0
495 hp
369 kW
3.7 s
301 km/h
187 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 Cayman (982)GT4 RS 4.0
Power
493 hp
368 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
Doors/seats
2 doors
2 seats
Trunk
136 L
4.8 cu ft
Length
4,455 mm
175.4 in
Height
1,267 mm
49.9 in
AlpinaB4 Gran Coupe (G26)3.0
Power
495 hp
369 kW
0-100 km/h3.7 s
Top speed
301 km/h
187 mph
Doors/seats
4 doors
4 seats
Trunk
470 L
16.6 cu ft
Length
4,792 mm
188.7 in
Height
1,440 mm
56.7 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 Cayman (982)GT4 RS 4.0
Power
493 hp
368 kW
0-100 km/h3.4 s
Top speed
315 km/h
196 mph
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
AlpinaB4 Gran Coupe (G26)3.0
Power
495 hp
369 kW
0-100 km/h3.7 s
Top speed
301 km/h
187 mph
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

Alpina B4 Gran Coupe (G26) 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 Cayman (982)GT4 RS 4.0
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
3.4 s
AlpinaB4 Gran Coupe (G26)3.0
9.8 L/100 km
24.0 mpg US
28.8 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 Cayman (982)GT4 RS 4.0
337 hp/t
251 kW/t
3.0 kg/hp
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
AlpinaB4 Gran Coupe (G26)3.0
252 hp/t
188 kW/t
4.0 kg/hp
9.8 L/100 km
24.0 mpg US
28.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Cayman (982)GT4 RS 4.0AlpinaB4 Gran Coupe (G26)3.0
Power
493 hp
368 kW
495 hp
369 kW
Torque
449 Nm
331 lb-ft
730 Nm
538 lb-ft
Acceleration
3.4 s
3.7 s
Top speed
315 km/h
196 mph
301 km/h
187 mph
Lightness
1,464 kg
3,228 lb
1,965 kg
4,332 lb
Fuel consumption
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
136 L
4.8 cu ft
Length
4,455 mm
175.4 in
Height
1,267 mm
49.9 in
Doors/seats
4 doors
4 seats
Trunk
470 L
16.6 cu ft
Length
4,792 mm
188.7 in
Height
1,440 mm
56.7 in
Range score
520 km
323 mi
602 km
374 mi
CO2 score
-
223 g/km
Trunk score
136 L
4.8 cu ft
470 L
16.6 cu ft
Power-to-weight score
337 hp/t
251 kW/t
3.0 kg/hp
252 hp/t
188 kW/t
4.0 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 Cayman (982) GT4 RS 4.0Alpina B4 Gran Coupe (G26) 3.0
Consumption12.3 L/100 km19.1 mpg US23 mpg UK9.8 L/100 km24 mpg US28.8 mpg UK
Cost / 100 km21.53 LC100 km17.15 LC100 km
Cost / 100 mi34.64 LC100 mi27.60 LC100 mi
Annual fuel used1,845 L487 US gal406 UK gal1,470 L388 US gal323 UK gal
Annual fuel cost3,229 LC/year2,573 LC/year

Head-to-head comparisons

Porsche 718 Cayman (982) GT4 RS 4.0

  • Is 501 kg lighter
  • Is 0.3 s quicker from 0-100 km/h
  • Has 14 km/h (9 mph) higher top speed
  • Has 85 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

Alpina B4 Gran Coupe (G26) 3.0

  • Has 2 hp more
  • Has 281 Nm more
  • Uses 2.5 L/100 km less fuel
  • Has 82 km (51 mi) more estimated range
  • Has 334 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 Cayman (982) GT4 RS 4.0
Alpina B4 Gran Coupe (G26) 3.0
Compare selected cars
2 vehicles selected

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