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AEPHEVvsB420iPetrol
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Mercedes E 400 e 4MATIC W214 vs BMW 420i Steptronic Gran Coupe G22: 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.

grand tourer · 2024 vs 2021 · Methodology
MercedesPHEVFaster

E 400 e 4MATIC W214

381 hp · 650 Nm · 2,245 kg · 2024

VS
BMWPetrol

420i Steptronic Gran Coupe G22

184 hp · 270 Nm · 1,570 kg · 2021

Result · 0–100 km/h

AMercedes E 400 e 4MATIC W214

5.30 s

Gap2.32 sin favour of E 400 e 4MATIC
BBMW 420i Steptronic Gran Coupe G22

7.62 s

Summary · Caralogy simulation
MeasureE 400 e 4MATIC W214420i Steptronic Gran Coupe G22Gap
0–100 km/h5.30 s7.62 s2.32 s · E 400 e 4MATIC W214
400 m standing start13.57 s15.55 s1.98 s · E 400 e 4MATIC W214
1,000 m standing start24.58 s28.34 s3.76 s · E 400 e 4MATIC W214
Top speed (electronically limited)250 km/h236 km/h14 km/h · E 400 e 4MATIC W214
Power-to-weight ratio5.89 kg/hp8.53 kg/hpbetter ratio · E 400 e 4MATIC W214

Watch the race

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

MercedesPHEVE 400 e 4MATIC W214
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol420i Steptronic Gran Coupe G22
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.
StageE 400 e 4MATIC W214420i Steptronic Gran Coupe G22
0–30 km/h1.36 s1.65 s
0–50 km/h2.06 s2.79 s
0–80 km/h3.74 s5.28 s
0–100 km/h5.30 s7.62 s
0–120 km/h7.13 s10.51 s
0–160 km/h12.19 s19.00 s
0–200 km/h19.66 s34.76 s
400 m standing start13.57 s15.55 s
1,000 m standing start24.58 s28.34 s
Top speed limited250 km/h236 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

E 400 e 4MATIC W214

5,89kg/hpratio better by 2,64 kg/hp
CharacteristicValueDetail
Power381 hp4 cyl
Torque650 Nm
Weight2 245 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown
BMW

420i Steptronic Gran Coupe G22

8,53kg/hpcompensated by −675 kg
CharacteristicValueDetail
Power184 hp4 cyl
Torque270 Nm
Weight1 570 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the E 400 e 4MATIC hits 100 km/h in 5.31 s versus 7.62 s for the 420i Steptronic Gran Coupe. The instant torque of 650 Nm from the electric motor makes the difference. At this point, the E 400 e 4MATIC leads by 2.32 s and sits roughly 17 m ahead.

From 100 km/h to 400 metres

At 200 metres, the E 400 e 4MATIC is doing 135 km/h against 118 km/h for the 420i Steptronic Gran Coupe. The gap is 1.27 s. The challenger starts to claw back ground.

At 400 metres standing start, the E 400 e 4MATIC crosses the line in 13.57 s versus 15.55 s. The 1.98 s gap represents roughly 78 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the E 400 e 4MATIC continues to build its lead. At 600 metres, it runs at 190 km/h versus 164 km/h. At 1,000 metres, the E 400 e 4MATIC finishes in 24.58 s versus 28.34 s, with a 3.77 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 236 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the E 400 e 4MATIC is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 420i Steptronic Gran Coupe at 236 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.

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 12.25 seconds. The 2.32 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, E 400 e 4MATIC W214 wins (5,30 s vs 7,62 s).

E 400 e 4MATIC W214 goes from 0 to 100 km/h in 5,30 seconds (calibrated simulation).

E 400 e 4MATIC W214: 381 hp, ratio 5,89 kg/hp. 420i Steptronic Gran Coupe G22: 184 hp, ratio 8,53 kg/hp.

E 400 e 4MATIC W214: 250 km/h. 420i Steptronic Gran Coupe G22: 236 km/h.