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A545ePHEVvsBM340dHybrid
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs545e · M340d

BMW 545e xDrive G30 vs BMW M340d xDrive G20: 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 · 2020 vs 2020 · Methodology
BMWPHEV

545e xDrive G30

394 hp · 600 Nm · 1,945 kg · 2020

VS
BMWHybrid

M340d xDrive G20

340 hp · 700 Nm · 1,820 kg · 2020

Result · 0–100 km/h

ABMW 545e xDrive G30

4.67 s

Gap0.10 sNot a significant gap
BBMW M340d xDrive G20

4.58 s

Summary · Caralogy simulation
Measure545e xDrive G30M340d xDrive G20Gap
0–100 km/h4.67 s4.58 s0.10 s · M340d xDrive G20
400 m standing start12.92 s12.87 s0.05 s · M340d xDrive G20
1,000 m standing start23.40 s23.54 s0.14 s · 545e xDrive G30
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio4.94 kg/hp5.35 kg/hpbetter ratio · 545e xDrive G30

Watch the race

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

BMWPHEV545e xDrive G30
Speed
0km/h
Timer
0,00s
Distance
0m
BMWHybridM340d xDrive G20
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.
Stage545e xDrive G30M340d xDrive G20
0–30 km/h1.21 s1.07 s · tight gap
0–50 km/h2.02 s1.78 s
0–80 km/h3.41 s3.25 s
0–100 km/h4.67 s4.58 s · tight gap
0–120 km/h6.25 s6.22 s · tight gap
0–160 km/h10.49 s10.70 s
0–200 km/h16.71 s17.39 s
400 m standing start12.92 s12.87 s · tight gap
1,000 m standing start23.40 s · tight gap23.54 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

545e xDrive G30

4,94kg/hpratio better by 0,42 kg/hp
CharacteristicValueDetail
Power394 hp6 cyl
Torque600 Nm
Weight1 945 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
BMW

M340d xDrive G20

5,35kg/hpcompensated by −125 kg
CharacteristicValueDetail
Power340 hp6 cyl
Torque700 Nm
Weight1 820 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the M340d xDrive hits 100 km/h in 4.58 s versus 4.68 s for the 545e xDrive. Despite lacking instant torque, 340 hp of power compensates. The 0.10 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the M340d xDrive is doing 141 km/h against 143 km/h for the 545e xDrive. The gap is 0.11 s. The gap remains stable from the start.

At 400 metres standing start, the M340d xDrive crosses the line in 12.87 s versus 12.91 s. The 0.05 s gap represents roughly 2 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, nothing changes. Same ceiling, same acceleration, same trajectory - both rivals run in formation to the line. The 0.14 s gap at 1,000 metres confirms what the specs already suggested: on track, they’re interchangeable. The real contest happens elsewhere - range, comfort, charging network reliability.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the 545e xDrive and the M340d xDrive 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 7.19 seconds. The 0.10 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, 545e xDrive G30 and M340d xDrive G20 are neck and neck (4,58 s vs 4,67 s, no significant gap).

545e xDrive G30 goes from 0 to 100 km/h in 4,67 seconds (calibrated simulation).

545e xDrive G30: 394 hp, ratio 4,94 kg/hp. M340d xDrive G20: 340 hp, ratio 5,35 kg/hp.

545e xDrive G30: 250 km/h. M340d xDrive G20: 250 km/h.