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ACaymanvsB218iPetrol
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  • SpecsCayman · 218i

Porsche Cayman GT4 vs BMW 218i Convertible F44: which is truly faster?

Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.

sports car · 2016 vs 2020 · Methodology
PorschePetrolFaster

Cayman GT4

385 hp · 419 Nm · 1,340 kg · 2016

VS
BMWPetrol

218i Convertible F44

136 hp · 220 Nm · 1,560 kg · 2020

Result · 0–100 km/h

APorsche Cayman GT4

3.95 s

Gap5.39 sin favour of Cayman GT4
BBMW 218i Convertible F44

9.34 s

Summary · Caralogy simulation
MeasureCayman GT4218i Convertible F44Gap
0–100 km/h3.95 s9.34 s5.39 s · Cayman GT4
400 m standing start11.90 s16.79 s4.89 s · Cayman GT4
1,000 m standing start21.60 s30.47 s8.87 s · Cayman GT4
Top speed (electronically limited)295 km/h207 km/h88 km/h · Cayman GT4
Power-to-weight ratio3.48 kg/hp11.47 kg/hpbetter ratio · Cayman GT4

Watch the race

Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.

PorschePetrolCayman GT4
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol218i Convertible F44
Speed
0km/h
Timer
0,00s
Distance
0m
100 m
200 m
300 m
400 m
500 m
600 m
700 m
800 m
900 m
1000 m
0m → 1000m
Gap0m

Stage-by-stage comparison

Simulated performance at each stage. Best value in bold.
StageCayman GT4218i Convertible F44
0–30 km/h0.98 s2.04 s
0–50 km/h1.63 s3.42 s
0–80 km/h2.98 s6.56 s
0–100 km/h3.95 s9.34 s
0–120 km/h4.99 s12.87 s
0–160 km/h8.18 s24.00 s
0–200 km/h12.74 s49.95 s
400 m standing start11.90 s16.79 s
1,000 m standing start21.60 s30.47 s
Top speed295 km/h207 km/h

Parameters and assumptions

Simulation

Start
Standing, straight line
Surface
Dry asphalt, 23°C
Wind
None
Driver
1 person, 75 kg

Calibration

Splits
0–100, 0–200 manufacturer
Power curve
Real measurement (Caralogy)
VMax
Manufacturer limited
Transmission
Losses integrated in model

Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Porsche

Cayman GT4

3,48kg/hpratio better by 7,99 kg/hp
CharacteristicValueDetail
Power385 hpB6
Torque419 Nm
Weight1 340 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL
BMW

218i Convertible F44

11,47kg/hpcompensated by −220 kg
CharacteristicValueDetail
Power136 hp4 cyl
Torque220 Nm
Weight1 560 kgmanufacturer kerb weight
Drivetrain-
Gearbox6-speed manual (8-speed Steptronic transmission)

The start: 0 to 100 km/h

Off the line, the Cayman GT4 hits 100 km/h in 3.95 s versus 9.34 s for the 218i Convertible. At this point, the Cayman GT4 leads by 5.39 s and sits roughly 29 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Cayman GT4 is doing 155 km/h against 110 km/h for the 218i Convertible. The gap is 3.19 s. The challenger starts to claw back ground.

At 400 metres standing start, the Cayman GT4 crosses the line in 11.90 s versus 16.78 s. The 4.89 s gap represents roughly 171 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Cayman GT4 continues to build its lead. At 600 metres, it runs at 218 km/h versus 154 km/h. At 1,000 metres, the Cayman GT4 finishes in 21.59 s versus 30.47 s, with a 8.87 s lead.

What the numbers don’t tell you

Electronically capped at 207 km/h, the 218i Convertible never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.48 kg/hp vs 11.47 kg/hp) and transmission (Manual vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 15.16 seconds. The 5.39 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

PorscheVSBMW

Cayman GT4 vs Z4 M40i

AudiVSBMW

A3 allstreet vs 218i Convertible

PorscheVSBMW

Cayman GT4 vs Z4 M40i

AudiVSBMW

A3 allstreet vs 218i Convertible

Frequently asked questions

Over 0–100 km/h, Cayman GT4 wins (3,95 s vs 9,34 s).

Cayman GT4 goes from 0 to 100 km/h in 3,95 seconds (calibrated simulation).

Cayman GT4: 385 hp, ratio 3,48 kg/hp. 218i Convertible F44: 136 hp, ratio 11,47 kg/hp.

Cayman GT4: 295 km/h. 218i Convertible F44: 207 km/h.