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A718vsB430iPetrol
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  • Specs718 · 430i

Porsche 718 Cayman GTS vs BMW 430i G22: 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 · 2018 vs 2021 · Methodology
PorschePetrolFaster

718 Cayman GTS

365 hp · 420 Nm · 1,375 kg · 2018

VS
BMWPetrol

430i G22

258 hp · 400 Nm · 1,545 kg · 2021

Result · 0–100 km/h

APorsche 718 Cayman GTS

4.46 s

Gap1.27 sin favour of 718 Cayman GTS
BBMW 430i G22

5.73 s

Summary · Caralogy simulation
Measure718 Cayman GTS430i G22Gap
0–100 km/h4.46 s5.73 s1.27 s · 718 Cayman GTS
400 m standing start12.32 s13.98 s1.66 s · 718 Cayman GTS
1,000 m standing start21.97 s25.35 s3.38 s · 718 Cayman GTS
Top speed (electronically limited)290 km/h250 km/h40 km/h · 718 Cayman GTS
Power-to-weight ratio3.77 kg/hp5.99 kg/hpbetter ratio · 718 Cayman GTS

Watch the race

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

PorschePetrol718 Cayman GTS
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol430i G22
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.
Stage718 Cayman GTS430i G22
0–30 km/h1.21 s1.42 s
0–50 km/h2.02 s2.36 s
0–80 km/h3.52 s4.12 s
0–100 km/h4.46 s5.73 s
0–120 km/h5.50 s7.73 s
0–160 km/h8.63 s13.25 s
0–200 km/h13.06 s22.00 s
400 m standing start12.32 s13.98 s
1,000 m standing start21.97 s25.35 s
Top speed limited290 km/h250 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

718 Cayman GTS

3,77kg/hpratio better by 2,22 kg/hp
CharacteristicValueDetail
Power365 hpB4
Torque420 Nm
Weight1 375 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL
BMW

430i G22

5,99kg/hpcompensated by −170 kg
CharacteristicValueDetail
Power258 hp4 cyl
Torque400 Nm
Weight1 545 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 718 Cayman GTS hits 100 km/h in 4.47 s versus 5.73 s for the 430i. At this point, the 718 Cayman GTS leads by 1.27 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 718 Cayman GTS is doing 155 km/h against 132 km/h for the 430i. The gap is 0.93 s. The challenger starts to claw back ground.

At 400 metres standing start, the 718 Cayman GTS crosses the line in 12.32 s versus 13.97 s. The 1.66 s gap represents roughly 73 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 718 Cayman GTS continues to build its lead. At 600 metres, it runs at 217 km/h versus 185 km/h. At 1,000 metres, the 718 Cayman GTS finishes in 21.96 s versus 25.35 s, with a 3.38 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 718 Cayman GTS is capped at 290 km/h, the 430i at 250 (i.e. 155 mph - industry threshold) km/h. This isn’t a physical engine limit - it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.77 kg/hp vs 5.99 kg/hp) and transmission (Manual vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.91 seconds. The 1.27 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

Instead of 430i G22
Jaguar F-TYPE P300

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Frequently asked questions

Over 0–100 km/h, 718 Cayman GTS wins (4,46 s vs 5,73 s).

718 Cayman GTS goes from 0 to 100 km/h in 4,46 seconds (calibrated simulation).

718 Cayman GTS: 365 hp, ratio 3,77 kg/hp. 430i G22: 258 hp, ratio 5,99 kg/hp.

718 Cayman GTS: 290 km/h. 430i G22: 250 km/h.