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BMW i7 M70 xDrive G70 vs MG4 Long Range RWD: 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 · 2023 vs 2023 · Methodology
BMWBEVFaster

i7 M70 xDrive G70

659 hp · 1015 Nm · 2,795 kg · 2023

VS
MGBEV

4 Long Range RWD

245 hp · 350 Nm · 1,715 kg · 2023

Result · 0–100 km/h

ABMW i7 M70 xDrive G70

3.65 s

Gap3.09 sin favour of i7 M70 xDrive
BMG4 Long Range RWD

6.73 s

Summary · Caralogy simulation
Measurei7 M70 xDrive G704 Long Range RWDGap
0–100 km/h3.65 s6.73 s3.09 s · i7 M70 xDrive G70
400 m standing start11.83 s14.92 s3.09 s · i7 M70 xDrive G70
1,000 m standing start21.61 s27.24 s5.63 s · i7 M70 xDrive G70
Top speed (electronically limited)250 km/h180 km/h70 km/h · i7 M70 xDrive G70
Power-to-weight ratio4.24 kg/hp7.00 kg/hpbetter ratio · i7 M70 xDrive G70

Watch the race

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

BMWBEVi7 M70 xDrive G70
Speed
0km/h
Timer
0,00s
Distance
0m
MGBEV4 Long Range RWD
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.
Stagei7 M70 xDrive G704 Long Range RWD
0–30 km/h1.01 s1.92 s
0–50 km/h1.68 s3.21 s
0–80 km/h2.73 s5.16 s
0–100 km/h3.65 s6.73 s
0–120 km/h4.80 s8.78 s
0–160 km/h8.23 s15.38 s
0–200 km/h13.17 s-
400 m standing start11.83 s14.92 s
1,000 m standing start21.61 s27.24 s
Top speed limited250 km/h180 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

i7 M70 xDrive G70

4,24kg/hpratio better by 2,76 kg/hp
CharacteristicValueDetail
Power659 hpPending
Torque1015 Nm
Weight2 795 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed reduction gear
MG

4 Long Range RWD

7,00kg/hpcompensated by −1 080 kg
CharacteristicValueDetail
Power245 hpPending
Torque350 Nm
Weight1 715 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxSingle-speed fixed gear

The start: 0 to 100 km/h

Off the line, the i7 M70 xDrive hits 100 km/h in 3.65 s versus 6.73 s for the 4 Long Range RWD. At this point, the i7 M70 xDrive leads by 3.09 s and sits roughly 25 m ahead.

From 100 km/h to 400 metres

At 200 metres, the i7 M70 xDrive is doing 155 km/h against 129 km/h for the 4 Long Range RWD. The gap is 2.25 s. The challenger starts to claw back ground.

At 400 metres standing start, the i7 M70 xDrive crosses the line in 11.83 s versus 14.92 s. The 3.08 s gap represents roughly 129 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the i7 M70 xDrive continues to build its lead. At 600 metres, it runs at 214 km/h versus 176 km/h. At 1,000 metres, the i7 M70 xDrive finishes in 21.61 s versus 27.23 s, with a 5.63 s lead.

What the numbers don’t tell you

The i7 M70 xDrive features all-wheel drive (AWD) against the 4 Long Range RWD’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Both rivals are electronically governed, but not at the same level: the i7 M70 xDrive is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 4 Long Range RWD at 180 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 electric powertrains, the difference comes down to power-to-weight ratio (4.24 kg/hp vs 7.00 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.07 seconds. The 3.09 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, i7 M70 xDrive G70 wins (3,65 s vs 6,73 s).

i7 M70 xDrive G70 goes from 0 to 100 km/h in 3,65 seconds (calibrated simulation).

i7 M70 xDrive G70: 659 hp, ratio 4,24 kg/hp. 4 Long Range RWD: 245 hp, ratio 7,00 kg/hp.

i7 M70 xDrive G70: 250 km/h. 4 Long Range RWD: 180 km/h.