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Mercedes S 580 e 4MATIC W223 vs BMW X3 M40i G01: 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 · 2026 vs 2020 · Methodology
MercedesPHEVFaster

S 580 e 4MATIC W223

585 hp · 750 Nm · 2,515 kg · 2026

VS
BMWPetrol

X3 M40i G01

360 hp · 500 Nm · 1,845 kg · 2020

Result · 0–100 km/h

AMercedes S 580 e 4MATIC W223

4.45 s

Gap0.33 sin favour of S 580 e 4MATIC
BBMW X3 M40i G01

4.78 s

Summary · Caralogy simulation
MeasureS 580 e 4MATIC W223X3 M40i G01Gap
0–100 km/h4.45 s4.78 s0.33 s · S 580 e 4MATIC W223
400 m standing start12.55 s13.02 s0.47 s · S 580 e 4MATIC W223
1,000 m standing start22.40 s23.68 s1.28 s · S 580 e 4MATIC W223
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio4.30 kg/hp5.13 kg/hpbetter ratio · S 580 e 4MATIC W223

Watch the race

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

MercedesPHEVS 580 e 4MATIC W223
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrolX3 M40i G01
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.
StageS 580 e 4MATIC W223X3 M40i G01
0–30 km/h1.36 s1.28 s · tight gap
0–50 km/h2.02 s · tight gap2.12 s
0–80 km/h3.30 s3.53 s
0–100 km/h4.45 s4.78 s
0–120 km/h5.85 s6.35 s
0–160 km/h9.47 s10.65 s
0–200 km/h14.19 s17.43 s
400 m standing start12.55 s13.02 s
1,000 m standing start22.40 s23.68 s
Top speed limited250 km/h250 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.

Mercedes

S 580 e 4MATIC W223

4,30kg/hpratio better by 0,83 kg/hp
CharacteristicValueDetail
Power585 hp6 cyl
Torque750 Nm
Weight2 515 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown
BMW

X3 M40i G01

5,13kg/hpcompensated by −670 kg
CharacteristicValueDetail
Power360 hp6 cyl
Torque500 Nm
Weight1 845 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the S 580 e 4MATIC hits 100 km/h in 4.45 s versus 4.78 s for the X3 M40i. The instant torque of 750 Nm from the electric motor makes the difference. At this point, the S 580 e 4MATIC leads by 0.33 s and sits roughly 3 m ahead.

From 100 km/h to 400 metres

At 200 metres, the S 580 e 4MATIC is doing 149 km/h against 142 km/h for the X3 M40i. The gap is 0.25 s. The gap remains stable from the start.

At 400 metres standing start, the S 580 e 4MATIC crosses the line in 12.54 s versus 13.02 s. The 0.47 s gap represents roughly 23 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the S 580 e 4MATIC continues to build its lead. At 600 metres, it runs at 212 km/h versus 197 km/h. At 1,000 metres, the S 580 e 4MATIC finishes in 22.40 s versus 23.67 s, with a 1.28 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the S 580 e 4MATIC and the X3 M40i are governed to 250 (i.e. 155 mph - industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.26 seconds. The 0.33 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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PorscheVSMercedes

Panamera Turbo S E-Hybrid vs S 580 e 4MATIC

BMWVSPorsche

X3 M40i vs Macan GTS

Frequently asked questions

Over 0–100 km/h, S 580 e 4MATIC W223 wins (4,45 s vs 4,78 s).

S 580 e 4MATIC W223 goes from 0 to 100 km/h in 4,45 seconds (calibrated simulation).

S 580 e 4MATIC W223: 585 hp, ratio 4,30 kg/hp. X3 M40i G01: 360 hp, ratio 5,13 kg/hp.

S 580 e 4MATIC W223: 250 km/h. X3 M40i G01: 250 km/h.