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APanamera 4vsB420iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsPanamera 4 · 420i

Porsche Panamera 4 vs BMW 420i F32: 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.

limousine · 2018 vs 2020 · Methodology
PorschePetrolFaster

Panamera 4

330 hp · 449 Nm · 2,008 kg · 2018

VS
BMWPetrol

420i F32

184 hp · 300 Nm · 1,525 kg · 2020

Result · 0–100 km/h

APorsche Panamera 4

5.45 s

Gap1.99 sin favour of Panamera 4
BBMW 420i F32

7.44 s

Summary · Caralogy simulation
MeasurePanamera 4420i F32Gap
0–100 km/h5.45 s7.44 s1.99 s · Panamera 4
400 m standing start13.78 s15.38 s1.60 s · Panamera 4
1,000 m standing start25.22 s28.23 s3.01 s · Panamera 4
Top speed (electronically limited)257 km/h238 km/h19 km/h · Panamera 4
Power-to-weight ratio6.08 kg/hp8.29 kg/hpbetter ratio · Panamera 4

Watch the race

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

PorschePetrolPanamera 4
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol420i F32
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.
StagePanamera 4420i F32
0–30 km/h1.27 s1.42 s
0–50 km/h2.16 s2.53 s
0–80 km/h3.90 s5.09 s
0–100 km/h5.45 s7.44 s
0–120 km/h7.52 s10.39 s
0–160 km/h13.02 s19.05 s
0–200 km/h22.27 s35.17 s
400 m standing start13.78 s15.38 s
1,000 m standing start25.22 s28.23 s
Top speed257 km/h238 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

Panamera 4

6,08kg/hpratio better by 2,20 kg/hp
CharacteristicValueDetail
Power330 hpV6
Torque449 Nm
Weight2 008 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxDUAL_CLUTCH
BMW

420i F32

8,29kg/hpcompensated by −483 kg
CharacteristicValueDetail
Power184 hp4 cyl
Torque300 Nm
Weight1 525 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the Panamera 4 hits 100 km/h in 5.45 s versus 7.44 s for the 420i. At this point, the Panamera 4 leads by 1.99 s and sits roughly 13 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Panamera 4 is doing 132 km/h against 117 km/h for the 420i. The gap is 0.99 s. The challenger starts to claw back ground.

At 400 metres standing start, the Panamera 4 crosses the line in 13.78 s versus 15.38 s. The 1.60 s gap represents roughly 63 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Panamera 4 continues to build its lead. At 600 metres, it runs at 184 km/h versus 163 km/h. At 1,000 metres, the Panamera 4 finishes in 25.22 s versus 28.23 s, with a 3.01 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Panamera 4 is capped at 257 km/h, the 420i at 240 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 (6.08 kg/hp vs 8.29 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.15 seconds. The 1.99 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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Frequently asked questions

Over 0–100 km/h, Panamera 4 wins (5,45 s vs 7,44 s).

Panamera 4 goes from 0 to 100 km/h in 5,45 seconds (calibrated simulation).

Panamera 4: 330 hp, ratio 6,08 kg/hp. 420i F32: 184 hp, ratio 8,29 kg/hp.

Panamera 4: 257 km/h. 420i F32: 238 km/h.