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A911vsB911Petrol
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  • Specs911 · 911

Porsche 911 Targa 4S 991.1 vs Porsche 911 Targa 4 991.1: 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 · 2014 vs 2014 · Methodology
PorschePetrolFaster

911 Targa 4S 991.1

406 hp · 441 Nm · 1,555 kg · 2014

VS
PorschePetrol

911 Targa 4 991.1

355 hp · 389 Nm · 1,540 kg · 2014

Result · 0–100 km/h

APorsche 911 Targa 4S 991.1

4.53 s

Gap0.63 sin favour of 911 Targa 4S
BPorsche 911 Targa 4 991.1

5.16 s

Summary · Caralogy simulation
Measure911 Targa 4S 991.1911 Targa 4 991.1Gap
0–100 km/h4.53 s5.16 s0.63 s · 911 Targa 4S 991.1
400 m standing start12.49 s13.21 s0.72 s · 911 Targa 4S 991.1
1,000 m standing start22.38 s23.68 s1.30 s · 911 Targa 4S 991.1
Top speed (electronically limited)295 km/h281 km/h14 km/h · 911 Targa 4S 991.1
Power-to-weight ratio3.83 kg/hp4.34 kg/hpbetter ratio · 911 Targa 4S 991.1

Watch the race

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

PorschePetrol911 Targa 4S 991.1
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrol911 Targa 4 991.1
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 Targa 4S 991.1911 Targa 4 991.1
0–30 km/h1.19 s1.35 s
0–50 km/h1.99 s2.25 s
0–80 km/h3.51 s3.96 s
0–100 km/h4.53 s5.16 s
0–120 km/h5.66 s6.50 s
0–160 km/h9.16 s10.69 s
0–200 km/h14.01 s16.76 s
400 m standing start12.49 s13.21 s
1,000 m standing start22.38 s23.68 s
Top speed295 km/h281 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 Targa 4S 991.1

3,83kg/hpratio better by 0,51 kg/hp
CharacteristicValueDetail
Power406 hpB6
Torque441 Nm
Weight1 555 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxMANUAL
Porsche

911 Targa 4 991.1

4,34kg/hp
CharacteristicValueDetail
Power355 hpB6
Torque389 Nm
Weight1 540 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxMANUAL

The start: 0 to 100 km/h

Off the line, the 911 Targa 4S hits 100 km/h in 4.53 s versus 5.16 s for the 911 Targa 4. At this point, the 911 Targa 4S leads by 0.63 s and sits roughly 7 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 911 Targa 4S is doing 150 km/h against 141 km/h for the 911 Targa 4. The gap is 0.47 s. The challenger starts to claw back ground.

At 400 metres standing start, the 911 Targa 4S crosses the line in 12.49 s versus 13.20 s. The 0.72 s gap represents roughly 35 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 911 Targa 4S continues to build its lead. At 600 metres, it runs at 213 km/h versus 201 km/h. At 1,000 metres, the 911 Targa 4S finishes in 22.38 s versus 23.67 s, with a 1.30 s lead. Both vehicles have similar top speeds (295 vs 281 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 911 Targa 4S is capped at 295 km/h, the 911 Targa 4 at 282 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 (3.83 kg/hp vs 4.34 kg/hp) and transmission (Manual vs Manual).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.68 seconds. The 0.63 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

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911 Targa 4S vs Z4 M40i

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911 Targa 4 vs Z4 M40i

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911 Targa 4S vs Z4 M40i

PorscheVSBMW

911 Targa 4 vs Z4 M40i

Frequently asked questions

Over 0–100 km/h, 911 Targa 4S 991.1 wins (4,53 s vs 5,16 s).

911 Targa 4S 991.1 goes from 0 to 100 km/h in 4,53 seconds (calibrated simulation).

911 Targa 4S 991.1: 406 hp, ratio 3,83 kg/hp. 911 Targa 4 991.1: 355 hp, ratio 4,34 kg/hp.

911 Targa 4S 991.1: 295 km/h. 911 Targa 4 991.1: 281 km/h.