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AM440ivsB718Petrol
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  • SpecsM440i · 718

BMW M440i G22 vs Porsche 718 Boxster: 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.

saloon · 2021 vs 2018 · Methodology
BMWPetrol

M440i G22

374 hp · 500 Nm · 1,695 kg · 2021

VS
PorschePetrolFaster

718 Boxster

300 hp · 380 Nm · 1,335 kg · 2018

Result · 0–100 km/h

ABMW M440i G22

4.83 s

Gap0.18 sin favour of 718 Boxster
BPorsche 718 Boxster

4.64 s

Summary · Caralogy simulation
MeasureM440i G22718 BoxsterGap
0–100 km/h4.83 s4.64 s0.18 s · 718 Boxster
400 m standing start12.93 s12.76 s0.17 s · 718 Boxster
1,000 m standing start23.15 s23.08 s0.07 s · 718 Boxster
Top speed (electronically limited)250 km/h274 km/h24 km/h · 718 Boxster
Power-to-weight ratio4.53 kg/hp4.45 kg/hpbetter ratio · 718 Boxster

Watch the race

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

BMWPetrolM440i G22
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrol718 Boxster
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.
StageM440i G22718 Boxster
0–30 km/h1.39 s1.28 s · tight gap
0–50 km/h2.31 s2.13 s
0–80 km/h3.68 s3.50 s
0–100 km/h4.83 s4.64 s
0–120 km/h6.24 s6.02 s
0–160 km/h10.05 s9.81 s
0–200 km/h15.69 s · tight gap15.72 s
400 m standing start12.93 s12.76 s
1,000 m standing start23.15 s23.08 s · tight gap
Top speed limited250 km/h274 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.

BMW

M440i G22

4,53kg/hpcompensated by −360 kg
CharacteristicValueDetail
Power374 hpPending
Torque500 Nm
Weight1 695 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

718 Boxster

4,45kg/hpratio better by 0,08 kg/hp
CharacteristicValueDetail
Power300 hpB4
Torque380 Nm
Weight1 335 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxDUAL_CLUTCH

The start: 0 to 100 km/h

Off the line, the 718 Boxster hits 100 km/h in 4.65 s versus 4.83 s for the M440i. At this point, the 718 Boxster leads by 0.18 s and sits roughly 4 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 718 Boxster is doing 147 km/h against 146 km/h for the M440i. The gap is 0.16 s. The gap remains stable from the start.

At 400 metres standing start, the 718 Boxster crosses the line in 12.76 s versus 12.93 s. The 0.17 s gap represents roughly 9 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the gap narrows. The M440i maxes out at 250 (i.e. 155 mph - industry threshold) km/h while the 718 Boxster keeps accelerating towards 274 km/h. At 600 metres, the gap has dropped to 0.16 s.

At 1,000 metres, the 718 Boxster finishes in 23.08 s versus 23.15 s, with just 0.07 s to spare. The M440i fails to fully close the launch gap.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the M440i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 718 Boxster at 274 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 (4.53 kg/hp vs 4.45 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.06 seconds. The 0.18 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, 718 Boxster wins (4,64 s vs 4,83 s).

M440i G22 goes from 0 to 100 km/h in 4,83 seconds (calibrated simulation).

M440i G22: 374 hp, ratio 4,53 kg/hp. 718 Boxster: 300 hp, ratio 4,45 kg/hp.

M440i G22: 250 km/h. 718 Boxster: 274 km/h.