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Home›Duel›Alfa Romeo Stelvio vs BMW X4

Performance comparison

Alfa Romeo Stelvio Quadrifoglio vs BMW X4 M Competition G02: 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.

Alfa RomeoPetrolFaster

Stelvio Quadrifoglio

510 hp · 600 Nm · 1,830 kg · 2017

VS
BMWPetrol

X4 M Competition G02

510 hp · 600 Nm · 1,995 kg · 2021

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

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.

Stelvio QuadrifoglioX4 M Competition G02
0–100 km/h3,83 s−0,30 s4,13 s
400 m standing start11,86 s−0,36 s12,22 s
1,000 m standing start21,59 s−0,76 s22,35 s
Top speed (electronically limited)283 km/h+33 km/h250 km/h
Power-to-weight ratio3,59 kg/hpbetter ratio3,91 kg/hp

Watch the race

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

Alfa RomeoPetrolStelvio Quadrifoglio
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrolX4 M Competition G02
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. Winner in green.

PalierStelvio QuadrifoglioX4 M Competition G02
0–30 km/h1,03 s1,07 stight gap
0–50 km/h1,72 s1,78 stight gap
0–80 km/h2,92 s2,96 stight gap
0–100 km/h3,83 s4,13 s
0–120 km/h5,03 s5,38 s
0–160 km/h8,13 s8,98 s
0–200 km/h12,83 s14,46 s
400 m standing start11,86 s12,22 s
1,000 m standing start21,59 s22,35 s
Top speed limited283 km/h250 km/h

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Alfa Romeo

Stelvio Quadrifoglio

3,59kg/hpratio better by 0,32 kg/hp
CharacteristicValueDetail
Power510 hpPending
Torque600 Nm
Weight1 830 kgmanufacturer kerb weight
Drivetrain—
Gearbox8-speed automatic
BMW

X4 M Competition G02

3,91kg/hpcompensated by −165 kg
CharacteristicValueDetail
Power510 hp6 cyl
Torque600 Nm
Weight1 995 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed M Steptronic transmission with Drivelogic

The start: 0 to 100 km/h

Off the line, the Stelvio Quadrifoglio hits 100 km/h in 3.83 s versus 4.13 s for the Bmw X4 M Competition. At this point, the Stelvio Quadrifoglio leads by 0.30 s and sits roughly 2 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Stelvio Quadrifoglio is doing 156 km/h against 151 km/h for the Bmw X4 M Competition. The gap is 0.20 s. The gap remains stable from the start.

At 400 metres standing start, the Stelvio Quadrifoglio crosses the line in 11.86 s versus 12.22 s. The 0.36 s gap represents roughly 19 m of track — two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Stelvio Quadrifoglio continues to build its lead. At 600 metres, it runs at 216 km/h versus 207 km/h. At 1,000 metres, the Stelvio Quadrifoglio finishes in 21.59 s versus 22.35 s, with a 0.76 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Stelvio Quadrifoglio is capped at 283 km/h, the Bmw X4 M Competition at 250 (i.e. 155 mph — industry threshold) 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 (3.59 kg/hp vs 3.91 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.14 seconds. The 0.30 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 Stelvio Quadrifoglio
Bmw X5 M CompetitionJaguar F-PACE SVRAudi SQ7 SUV
Instead of X4 M Competition G02
Audi RS Q8 SUVAudi RS Q8 SUVAudi SQ8 SUV

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Frequently asked questions

Sur 0–100 km/h, Stelvio Quadrifoglio gagne (3,83 s vs 4,13 s).

Stelvio Quadrifoglio passe de 0 à 100 km/h en 3,83 secondes (simulation calibrée).

Stelvio Quadrifoglio : 510 hp, ratio 3,59 kg/hp. X4 M Competition G02 : 510 hp, ratio 3,91 kg/hp.

Stelvio Quadrifoglio : 283 km/h. X4 M Competition G02 : 250 km/h.