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A630iHybridvsB120dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs630i · 120d

BMW 630i Gran Turismo G32 vs BMW 120d F20LCI: 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 · 2021 vs 2018 · Methodology
BMWHybridFaster

630i Gran Turismo G32

258 hp · 400 Nm · 1,785 kg · 2021

VS
BMWDiesel

120d F20LCI

190 hp · 400 Nm · 1,415 kg · 2018

Result · 0–100 km/h

ABMW 630i Gran Turismo G32

6.57 s

Gap0.58 sin favour of 630i Gran Turismo
BBMW 120d F20LCI

7.15 s

Summary · Caralogy simulation
Measure630i Gran Turismo G32120d F20LCIGap
0–100 km/h6.57 s7.15 s0.58 s · 630i Gran Turismo G32
400 m standing start14.75 s15.30 s0.55 s · 630i Gran Turismo G32
1,000 m standing start26.54 s27.54 s1.00 s · 630i Gran Turismo G32
Top speed (electronically limited)250 km/h228 km/h22 km/h · 630i Gran Turismo G32
Power-to-weight ratio6.92 kg/hp7.45 kg/hpbetter ratio · 630i Gran Turismo G32

Watch the race

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

BMWHybrid630i Gran Turismo G32
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel120d F20LCI
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.
Stage630i Gran Turismo G32120d F20LCI
0–30 km/h1.73 s2.05 s
0–50 km/h2.88 s3.27 s
0–80 km/h4.81 s5.29 s
0–100 km/h6.57 s7.15 s
0–120 km/h8.81 s9.55 s
0–160 km/h15.06 s16.63 s
0–200 km/h25.33 s30.38 s
400 m standing start14.75 s15.30 s
1,000 m standing start26.54 s27.54 s
Top speed limited250 km/h228 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

630i Gran Turismo G32

6,92kg/hpratio better by 0,53 kg/hp
CharacteristicValueDetail
Power258 hp4 cyl
Torque400 Nm
Weight1 785 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxEight-speed Steptronic transmission
BMW

120d F20LCI

7,45kg/hpcompensated by −370 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 415 kgmanufacturer kerb weight
Drivetrain-
Gearbox6-speed manual (8-speed Steptronic)

The start: 0 to 100 km/h

Off the line, the 630i Gran Turismo hits 100 km/h in 6.57 s versus 7.15 s for the 120d. At this point, the 630i Gran Turismo leads by 0.58 s and sits roughly 10 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 630i Gran Turismo is doing 127 km/h against 124 km/h for the 120d. The gap is 0.43 s. The challenger starts to claw back ground.

At 400 metres standing start, the 630i Gran Turismo crosses the line in 14.75 s versus 15.30 s. The 0.55 s gap represents roughly 23 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 630i Gran Turismo continues to build its lead. At 600 metres, it runs at 178 km/h versus 172 km/h. At 1,000 metres, the 630i Gran Turismo finishes in 26.53 s versus 27.53 s, with a 1.00 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 630i Gran Turismo is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 120d at 228 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 combustion powertrains, the difference comes down to power-to-weight ratio (6.92 kg/hp vs 7.45 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.99 seconds. The 0.58 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, 630i Gran Turismo G32 wins (6,57 s vs 7,15 s).

630i Gran Turismo G32 goes from 0 to 100 km/h in 6,57 seconds (calibrated simulation).

630i Gran Turismo G32: 258 hp, ratio 6,92 kg/hp. 120d F20LCI: 190 hp, ratio 7,45 kg/hp.

630i Gran Turismo G32: 250 km/h. 120d F20LCI: 228 km/h.