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A225iPetrolvsB320dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs225i · 320d

BMW 225i xDrive F44 vs BMW 320d 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.

compact · 2021 vs 2024 · Methodology
BMWPetrolFaster

225i xDrive F44

231 hp · 350 Nm · 1,520 kg · 2021

VS
BMWDiesel

320d G20

190 hp · 400 Nm · 1,540 kg · 2024

Result · 0–100 km/h

ABMW 225i xDrive F44

6.41 s

Gap0.54 sin favour of 225i xDrive
BBMW 320d G20

6.95 s

Summary · Caralogy simulation
Measure225i xDrive F44320d G20Gap
0–100 km/h6.41 s6.95 s0.54 s · 225i xDrive F44
400 m standing start14.61 s15.06 s0.45 s · 225i xDrive F44
1,000 m standing start26.49 s27.81 s1.32 s · 225i xDrive F44
Top speed (electronically limited)235 km/h234 km/h1 km/h · 225i xDrive F44
Power-to-weight ratio6.58 kg/hp8.11 kg/hpbetter ratio · 225i xDrive F44

Watch the race

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

BMWPetrol225i xDrive F44
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel320d 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.
Stage225i xDrive F44320d G20
0–30 km/h1.66 s1.30 s
0–50 km/h2.77 s2.33 s
0–80 km/h4.66 s · tight gap4.74 s
0–100 km/h6.41 s6.95 s
0–120 km/h8.60 s9.82 s
0–160 km/h14.90 s18.29 s
0–200 km/h26.60 s34.36 s
400 m standing start14.61 s15.06 s
1,000 m standing start26.49 s27.81 s
Top speed235 km/h234 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

225i xDrive F44

6,58kg/hpratio better by 1,53 kg/hp
CharacteristicValueDetail
Power231 hp4 cyl
Torque350 Nm
Weight1 520 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

320d G20

8,11kg/hp
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 540 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 225i xDrive hits 100 km/h in 6.41 s versus 6.95 s for the 320d. Despite the faster sprint time, the 320d is 4 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.

From 100 km/h to 400 metres

At 200 metres, the 225i xDrive is doing 128 km/h against 119 km/h for the 320d. The gap is 0.07 s. The challenger starts to claw back ground.

At 400 metres standing start, the 225i xDrive crosses the line in 14.60 s versus 15.06 s. The 0.46 s gap represents roughly 18 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 225i xDrive continues to build its lead. At 600 metres, it runs at 177 km/h versus 165 km/h. At 1,000 metres, the 225i xDrive finishes in 26.49 s versus 27.80 s, with a 1.32 s lead. Both vehicles have similar top speeds (235 vs 234 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the 225i xDrive and the 320d are governed to 235 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.

With two combustion powertrains, the difference comes down to power-to-weight ratio (6.58 kg/hp vs 8.11 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.51 seconds. The 0.54 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

Instead of 225i xDrive F44
Audi A5 SedanAudi A5 Sedan TDI quattro S tronic 150 kW
Instead of 320d G20
Audi A3 Sedan

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VolvoVSBMW

S60 B4 vs 320d

Frequently asked questions

Over 0–100 km/h, 225i xDrive F44 wins (6,41 s vs 6,95 s).

225i xDrive F44 goes from 0 to 100 km/h in 6,41 seconds (calibrated simulation).

225i xDrive F44: 231 hp, ratio 6,58 kg/hp. 320d G20: 190 hp, ratio 8,11 kg/hp.

225i xDrive F44: 235 km/h. 320d G20: 234 km/h.