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A911vsB420iPetrol
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  • PerformancePerformance0-100, top speed
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  • Specs911 · 420i

Porsche 911 Carrera 991.1 vs BMW 420i xDrive 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 · 2013 vs 2021 · Methodology
PorschePetrolFaster

911 Carrera 991.1

355 hp · 389 Nm · 1,380 kg · 2013

VS
BMWPetrol

420i xDrive G22

184 hp · 300 Nm · 1,590 kg · 2021

Result · 0–100 km/h

APorsche 911 Carrera 991.1

4.66 s

Gap3.08 sin favour of 911 Carrera
BBMW 420i xDrive G22

7.74 s

Summary · Caralogy simulation
Measure911 Carrera 991.1420i xDrive G22Gap
0–100 km/h4.66 s7.74 s3.08 s · 911 Carrera 991.1
400 m standing start12.55 s15.61 s3.06 s · 911 Carrera 991.1
1,000 m standing start22.38 s28.72 s6.34 s · 911 Carrera 991.1
Top speed (electronically limited)288 km/h234 km/h54 km/h · 911 Carrera 991.1
Power-to-weight ratio3.89 kg/hp8.64 kg/hpbetter ratio · 911 Carrera 991.1

Watch the race

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

PorschePetrol911 Carrera 991.1
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol420i xDrive 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.
Stage911 Carrera 991.1420i xDrive G22
0–30 km/h1.27 s · tight gap1.38 s
0–50 km/h2.12 s2.58 s
0–80 km/h3.68 s5.26 s
0–100 km/h4.66 s7.74 s
0–120 km/h5.74 s10.94 s
0–160 km/h9.13 s20.29 s
0–200 km/h13.85 s38.25 s
400 m standing start12.55 s15.61 s
1,000 m standing start22.38 s28.72 s
Top speed288 km/h234 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 Carrera 991.1

3,89kg/hpratio better by 4,75 kg/hp
CharacteristicValueDetail
Power355 hpAluminum engine block and cylinder heads
Torque389 Nm
Weight1 380 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL
BMW

420i xDrive G22

8,64kg/hpcompensated by −210 kg
CharacteristicValueDetail
Power184 hpPending
Torque300 Nm
Weight1 590 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 911 Carrera hits 100 km/h in 4.66 s versus 7.74 s for the 420i xDrive. At this point, the 911 Carrera leads by 3.09 s and sits roughly 12 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 911 Carrera is doing 151 km/h against 115 km/h for the 420i xDrive. The gap is 1.67 s. The challenger starts to claw back ground.

At 400 metres standing start, the 911 Carrera crosses the line in 12.55 s versus 15.61 s. The 3.05 s gap represents roughly 115 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 911 Carrera continues to build its lead. At 600 metres, it runs at 215 km/h versus 160 km/h. At 1,000 metres, the 911 Carrera finishes in 22.38 s versus 28.71 s, with a 6.34 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 911 Carrera is capped at 288 km/h, the 420i xDrive at 238 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 (3.89 kg/hp vs 8.64 kg/hp) and transmission (Manual vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.85 seconds. The 3.09 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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A5 Avant vs 420i xDrive

Frequently asked questions

Over 0–100 km/h, 911 Carrera 991.1 wins (4,66 s vs 7,74 s).

911 Carrera 991.1 goes from 0 to 100 km/h in 4,66 seconds (calibrated simulation).

911 Carrera 991.1: 355 hp, ratio 3,89 kg/hp. 420i xDrive G22: 184 hp, ratio 8,64 kg/hp.

911 Carrera 991.1: 288 km/h. 420i xDrive G22: 234 km/h.