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A4vsBDolphinBEV
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  • PerformancePerformance0-100, top speed
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  • Specs4 · Dolphin

MG4 Long Range RWD vs BYD Dolphin Boost 150kW: 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.

compact · 2023 vs 2022 · Methodology
MGBEVFaster

4 Long Range RWD

245 hp · 350 Nm · 1,715 kg · 2023

VS
BYDBEV

Dolphin Boost 150kW

204 hp · 290 Nm · 1,490 kg · 2022

Result · 0–100 km/h

AMG4 Long Range RWD

6.73 s

Gap0.20 sin favour of 4 Long Range RWD
BBYD Dolphin Boost 150kW

6.93 s

Summary · Caralogy simulation
Measure4 Long Range RWDDolphin Boost 150kWGap
0–100 km/h6.73 s6.93 s0.20 s · 4 Long Range RWD
400 m standing start14.92 s15.14 s0.22 s · 4 Long Range RWD
1,000 m standing start27.24 s28.66 s1.42 s · 4 Long Range RWD
Top speed (electronically limited)180 km/h160 km/h20 km/h · 4 Long Range RWD
Power-to-weight ratio7.00 kg/hp7.30 kg/hpbetter ratio · 4 Long Range RWD

Watch the race

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

MGBEV4 Long Range RWD
Speed
0km/h
Timer
0,00s
Distance
0m
BYDBEVDolphin Boost 150kW
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.
Stage4 Long Range RWDDolphin Boost 150kW
0–30 km/h1.92 s · tight gap1.93 s
0–50 km/h3.21 s · tight gap3.23 s
0–80 km/h5.16 s · tight gap5.23 s
0–100 km/h6.73 s6.93 s
0–120 km/h8.78 s9.17 s
0–160 km/h15.38 s16.56 s
400 m standing start14.92 s15.14 s
1,000 m standing start27.24 s28.66 s
Top speed180 km/h160 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.

MG

4 Long Range RWD

7,00kg/hpratio better by 0,30 kg/hp
CharacteristicValueDetail
Power245 hpPending
Torque350 Nm
Weight1 715 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxSingle-speed fixed gear
BYD

Dolphin Boost 150kW

7,30kg/hpcompensated by −225 kg
CharacteristicValueDetail
Power204 hpPending
Torque290 Nm
Weight1 490 kgmanufacturer kerb weight
Drivetrain-
Gearboxsingle-speed reduction

The start: 0 to 100 km/h

Off the line, the 4 Long Range RWD hits 100 km/h in 6.73 s versus 6.93 s for the Dolphin Boost 150kW. At this point, the 4 Long Range RWD leads by 0.20 s and sits roughly 1 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 4 Long Range RWD is doing 129 km/h against 126 km/h for the Dolphin Boost 150kW. The gap is 0.11 s. The gap remains stable from the start.

At 400 metres standing start, the 4 Long Range RWD crosses the line in 14.92 s versus 15.13 s. The 0.22 s gap represents roughly 9 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 4 Long Range RWD continues to build its lead. At 600 metres, it runs at 176 km/h versus 160 km/h. At 1,000 metres, the 4 Long Range RWD finishes in 27.23 s versus 28.66 s, with a 1.43 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 4 Long Range RWD is capped at 180 km/h, the Dolphin Boost 150kW at 160 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 (7.00 kg/hp vs 7.30 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.58 seconds. The 0.20 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, 4 Long Range RWD wins (6,73 s vs 6,93 s).

4 Long Range RWD goes from 0 to 100 km/h in 6,73 seconds (calibrated simulation).

4 Long Range RWD: 245 hp, ratio 7,00 kg/hp. Dolphin Boost 150kW: 204 hp, ratio 7,30 kg/hp.

4 Long Range RWD: 180 km/h. Dolphin Boost 150kW: 160 km/h.