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BMW X5 M50d F15 vs Mercedes S 450 4MATIC Limousine Langversion W223: 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.

large SUV · 2018 vs 2026 · Methodology
BMWDiesel

X5 M50d F15

400 hp · 760 Nm · 2,275 kg · 2018

VS
MercedesHybridFaster

S 450 4MATIC Limousine Langversion W223

381 hp · 560 Nm · 2,185 kg · 2026

Result · 0–100 km/h

ABMW X5 M50d F15

5.15 s

Gap0.29 sin favour of S 450 4MATIC Limousine Langversion
BMercedes S 450 4MATIC Limousine Langversion W223

4.86 s

Summary · Caralogy simulation
MeasureX5 M50d F15S 450 4MATIC Limousine Langversion W223Gap
0–100 km/h5.15 s4.86 s0.29 s · S 450 4MATIC Limousine Langversion W223
400 m standing start13.47 s13.09 s0.38 s · S 450 4MATIC Limousine Langversion W223
1,000 m standing start24.61 s23.76 s0.85 s · S 450 4MATIC Limousine Langversion W223
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio5.69 kg/hp5.73 kg/hpbetter ratio · X5 M50d F15

Watch the race

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

BMWDieselX5 M50d F15
Speed
0km/h
Timer
0,00s
Distance
0m
MercedesHybridS 450 4MATIC Limousine Langversion W223
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.
StageX5 M50d F15S 450 4MATIC Limousine Langversion W223
0–30 km/h1.33 s1.05 s
0–50 km/h2.15 s1.84 s
0–80 km/h3.71 s3.40 s
0–100 km/h5.15 s4.86 s
0–120 km/h6.95 s6.52 s
0–160 km/h12.03 s11.10 s
0–200 km/h20.34 s17.78 s
400 m standing start13.47 s13.09 s
1,000 m standing start24.61 s23.76 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.

BMW

X5 M50d F15

5,69kg/hpratio better by 0,05 kg/hp
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight2 275 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Mercedes

S 450 4MATIC Limousine Langversion W223

5,73kg/hpcompensated by −90 kg
CharacteristicValueDetail
Power381 hpPending
Torque560 Nm
Weight2 185 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown

The start: 0 to 100 km/h

Off the line, the S 450 4MATIC Limousine Langversion hits 100 km/h in 4.86 s versus 5.15 s for the X5 M50d. At this point, the S 450 4MATIC Limousine Langversion leads by 0.29 s and sits roughly 7 m ahead.

From 100 km/h to 400 metres

At 200 metres, the S 450 4MATIC Limousine Langversion is doing 138 km/h against 136 km/h for the X5 M50d. The gap is 0.29 s. The gap remains stable from the start.

At 400 metres standing start, the S 450 4MATIC Limousine Langversion crosses the line in 13.08 s versus 13.47 s. The 0.39 s gap represents roughly 18 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the S 450 4MATIC Limousine Langversion continues to build its lead. At 600 metres, it runs at 196 km/h versus 189 km/h. At 1,000 metres, the S 450 4MATIC Limousine Langversion finishes in 23.76 s versus 24.60 s, with a 0.84 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 X5 M50d and the S 450 4MATIC Limousine Langversion 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.

With two combustion powertrains, the difference comes down to power-to-weight ratio (5.69 kg/hp vs 5.73 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.07 seconds. The 0.29 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Frequently asked questions

Over 0–100 km/h, S 450 4MATIC Limousine Langversion W223 wins (4,86 s vs 5,15 s).

X5 M50d F15 goes from 0 to 100 km/h in 5,15 seconds (calibrated simulation).

X5 M50d F15: 400 hp, ratio 5,69 kg/hp. S 450 4MATIC Limousine Langversion W223: 381 hp, ratio 5,73 kg/hp.

X5 M50d F15: 250 km/h. S 450 4MATIC Limousine Langversion W223: 250 km/h.