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A911vsBCaymanPetrol
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  • Specs911 · Cayman

Porsche 911 GT3 RS 991.2 vs Porsche Cayman: 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 2014 · Methodology
PorschePetrolFaster

911 GT3 RS 991.2

507 hp · 460 Nm · 1,420 kg · 2016

VS
PorschePetrol

Cayman

279 hp · 289 Nm · 1,310 kg · 2014

Result · 0–100 km/h

APorsche 911 GT3 RS 991.2

3.26 s

Gap2.26 sin favour of 911 GT3 RS
BPorsche Cayman

5.52 s

Summary · Caralogy simulation
Measure911 GT3 RS 991.2CaymanGap
0–100 km/h3.26 s5.52 s2.26 s · 911 GT3 RS 991.2
400 m standing start11.02 s13.64 s2.62 s · 911 GT3 RS 991.2
1,000 m standing start19.95 s24.69 s4.74 s · 911 GT3 RS 991.2
Top speed (electronically limited)312 km/h253 km/h59 km/h · 911 GT3 RS 991.2
Power-to-weight ratio2.80 kg/hp4.70 kg/hpbetter ratio · 911 GT3 RS 991.2

Watch the race

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

PorschePetrol911 GT3 RS 991.2
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrolCayman
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.
Stage911 GT3 RS 991.2Cayman
0–30 km/h0.93 s1.38 s
0–50 km/h1.54 s2.30 s
0–80 km/h2.52 s4.02 s
0–100 km/h3.26 s5.52 s
0–120 km/h4.21 s7.16 s
0–160 km/h6.60 s12.01 s
0–200 km/h9.98 s19.90 s
400 m standing start11.02 s13.64 s
1,000 m standing start19.95 s24.69 s
Top speed312 km/h253 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

911 GT3 RS 991.2

2,80kg/hpratio better by 1,89 kg/hp
CharacteristicValueDetail
Power507 hpB6
Torque460 Nm
Weight1 420 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxDUAL_CLUTCH
Porsche

Cayman

4,70kg/hpcompensated by −110 kg
CharacteristicValueDetail
Power279 hpAluminum block and heads
Torque289 Nm
Weight1 310 kgmanufacturer kerb weight
DrivetrainPropulsion
Gearbox6-speed

The start: 0 to 100 km/h

Off the line, the 911 GT3 RS hits 100 km/h in 3.26 s versus 5.52 s for the Cayman. At this point, the 911 GT3 RS leads by 2.26 s and sits roughly 15 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 911 GT3 RS is doing 169 km/h against 136 km/h for the Cayman. The gap is 1.72 s. The challenger starts to claw back ground.

At 400 metres standing start, the 911 GT3 RS crosses the line in 11.02 s versus 13.64 s. The 2.62 s gap represents roughly 118 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 911 GT3 RS continues to build its lead. At 600 metres, it runs at 235 km/h versus 190 km/h. At 1,000 metres, the 911 GT3 RS finishes in 19.95 s versus 24.68 s, with a 4.74 s lead.

What the numbers don’t tell you

With two combustion powertrains, the difference comes down to power-to-weight ratio (2.80 kg/hp vs 4.70 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.30 seconds. The 2.26 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Cayman vs Z4 sDrive30i

Frequently asked questions

Over 0–100 km/h, 911 GT3 RS 991.2 wins (3,26 s vs 5,52 s).

911 GT3 RS 991.2 goes from 0 to 100 km/h in 3,26 seconds (calibrated simulation).

911 GT3 RS 991.2: 507 hp, ratio 2,80 kg/hp. Cayman: 279 hp, ratio 4,70 kg/hp.

911 GT3 RS 991.2: 312 km/h. Cayman: 253 km/h.