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Porsche 911 Turbo 997.2 vs Porsche 911 GT3 991.1: 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 · 2010 vs 2011 · Methodology
PorschePetrolFaster

911 Turbo 997.2

507 hp · 700 Nm · 1,570 kg · 2010

VS
PorschePetrol

911 GT3 991.1

441 hp · 430 Nm · 1,395 kg · 2011

Result · 0–100 km/h

APorsche 911 Turbo 997.2

3.53 s

Gap0.55 sin favour of 911 Turbo
BPorsche 911 GT3 991.1

4.08 s

Summary · Caralogy simulation
Measure911 Turbo 997.2911 GT3 991.1Gap
0–100 km/h3.53 s4.08 s0.55 s · 911 Turbo 997.2
400 m standing start11.25 s11.86 s0.61 s · 911 Turbo 997.2
1,000 m standing start20.28 s21.24 s0.96 s · 911 Turbo 997.2
Top speed (electronically limited)311 km/h313 km/h2 km/h · 911 GT3 991.1
Power-to-weight ratio3.10 kg/hp3.16 kg/hpbetter ratio · 911 Turbo 997.2

Watch the race

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

PorschePetrol911 Turbo 997.2
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrol911 GT3 991.1
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 Turbo 997.2911 GT3 991.1
0–30 km/h1.04 s · tight gap1.07 s
0–50 km/h1.74 s · tight gap1.78 s
0–80 km/h2.80 s3.11 s
0–100 km/h3.53 s4.08 s
0–120 km/h4.45 s5.05 s
0–160 km/h6.82 s8.00 s
0–200 km/h10.27 s12.09 s
400 m standing start11.25 s11.86 s
1,000 m standing start20.28 s21.24 s
Top speed311 km/h313 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 Turbo 997.2

3,10kg/hpratio better by 0,07 kg/hp
CharacteristicValueDetail
Power507 hpAluminium engine block and cylinder head
Torque700 Nm
Weight1 570 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown
Porsche

911 GT3 991.1

3,16kg/hpcompensated by −175 kg
CharacteristicValueDetail
Power441 hpB6
Torque430 Nm
Weight1 395 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL

The start: 0 to 100 km/h

Off the line, the 911 Turbo hits 100 km/h in 3.53 s versus 4.08 s for the 911 GT3. At this point, the 911 Turbo leads by 0.55 s and sits roughly 2 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 911 Turbo is doing 168 km/h against 158 km/h for the 911 GT3. The gap is 0.39 s. The challenger starts to claw back ground.

At 400 metres standing start, the 911 Turbo crosses the line in 11.25 s versus 11.85 s. The 0.60 s gap represents roughly 33 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 911 Turbo continues to build its lead. At 600 metres, it runs at 233 km/h versus 225 km/h. At 1,000 metres, the 911 Turbo finishes in 20.27 s versus 21.23 s, with a 0.96 s lead. Both vehicles have similar top speeds (311 vs 313 km/h), preventing any comeback.

What the numbers don’t tell you

The 911 Turbo features all-wheel drive (AWD) against the 911 GT3’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Electronically capped at 312 km/h, the 911 Turbo 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 (3.10 kg/hp vs 3.16 kg/hp) and transmission (Unknown vs Manual).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 5.61 seconds. The 0.55 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.

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Frequently asked questions

Over 0–100 km/h, 911 Turbo 997.2 wins (3,53 s vs 4,08 s).

911 Turbo 997.2 goes from 0 to 100 km/h in 3,53 seconds (calibrated simulation).

911 Turbo 997.2: 507 hp, ratio 3,10 kg/hp. 911 GT3 991.1: 441 hp, ratio 3,16 kg/hp.

911 Turbo 997.2: 311 km/h. 911 GT3 991.1: 313 km/h.