Aller au contenu principal
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRDEESIT
© 2026 Caralogy · All rights reserved
Home›Duel›Porsche Boxster vs BMW 420d

Performance comparison

Porsche Boxster S 981 vs BMW 420d 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.

PorschePetrolFaster

Boxster S 981

314 hp · 361 Nm · 1,355 kg · 2012

VS
BMWDiesel

420d F32

190 hp · 400 Nm · 1,605 kg · 2020

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

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.

Boxster S 981420d F32
0–100 km/h5,08 s−1,96 s7,04 s
400 m standing start13,23 s−1,88 s15,11 s
1,000 m standing start23,87 s−3,91 s27,78 s
Top speed (electronically limited)262 km/h+22 km/h240 km/h
Power-to-weight ratio4,32 kg/hpbetter ratio8,45 kg/hp

Watch the race

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

PorschePetrolBoxster S 981
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel420d 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. Winner in green.

PalierBoxster S 981420d F32
0–30 km/h1,43 s1,37 stight gap
0–50 km/h2,38 s2,40 stight gap
0–80 km/h3,91 s4,80 s
0–100 km/h5,08 s7,04 s
0–120 km/h6,61 s9,85 s
0–160 km/h10,72 s18,13 s
0–200 km/h17,41 s33,30 s
400 m standing start13,23 s15,11 s
1,000 m standing start23,87 s27,78 s
Top speed262 km/h240 km/h

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Porsche

Boxster S 981

4,32kg/hpratio better by 4,13 kg/hp
CharacteristicValueDetail
Power314 hpEngine block and cylinder heads formed in aluminum
Torque361 Nm
Weight1 355 kgmanufacturer kerb weight
DrivetrainPropulsion
Gearbox6 speed standard
BMW

420d F32

8,45kg/hpcompensated by −250 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 605 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the Boxster S hits 100 km/h in 5.08 s versus 7.04 s for the Bmw 420d. At this point, the Boxster S leads by 1.96 s and sits roughly 6 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Boxster S is doing 143 km/h against 119 km/h for the Bmw 420d. The gap is 0.96 s. The challenger starts to claw back ground.

At 400 metres standing start, the Boxster S crosses the line in 13.23 s versus 15.10 s. The 1.87 s gap represents roughly 74 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Boxster S continues to build its lead. At 600 metres, it runs at 198 km/h versus 166 km/h. At 1,000 metres, the Boxster S finishes in 23.87 s versus 27.77 s, with a 3.91 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Boxster S is capped at 274 km/h, the Bmw 420d 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 (4.32 kg/hp vs 8.45 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.60 seconds. The 1.96 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Autres duels qui pourraient vous intéresser

PorscheVSJaguar

Boxster S vs F-TYPE P300

AudiVSBmw

A4 40 TDI vs 420d

BmwVSPorsche

Z4 M40i vs Boxster S

VolvoVSBmw

S60 B4 vs 420d

Frequently asked questions

Over 0–100 km/h, Boxster S 981 wins (5,08 s vs 7,04 s).

Boxster S 981 goes from 0 to 100 km/h in 5,08 seconds (calibrated simulation).

Boxster S 981: 314 hp, ratio 4,32 kg/hp. 420d F32: 190 hp, ratio 8,45 kg/hp.

Boxster S 981: 262 km/h. 420d F32: 240 km/h.