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Home›Duel›Alfa Romeo Giulia vs BMW M550d

Performance comparison

Alfa Romeo Giulia Quadrifoglio vs BMW M550d xDrive Touring G30: 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

Giulia Quadrifoglio

510 hp · 600 Nm · 1,580 kg · 2024

VS
BMWDiesel

M550d xDrive Touring G30

400 hp · 760 Nm · 1,955 kg · 2018

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.

Giulia QuadrifoglioM550d xDrive Touring G30
0–100 km/h3,93 s−0,63 s4,55 s
400 m standing start11,73 s−1,09 s12,82 s
1,000 m standing start20,92 s−2,42 s23,34 s
Top speed (electronically limited)307 km/h+57 km/h250 km/h
Power-to-weight ratio3,10 kg/hpbetter ratio4,89 kg/hp

Watch the race

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

Alfa RomeoPetrolGiulia Quadrifoglio
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDieselM550d xDrive Touring G30
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.

PalierGiulia QuadrifoglioM550d xDrive Touring G30
0–30 km/h1,18 s1,18 stight gap
0–50 km/h1,97 s1,96 stight gap
0–80 km/h3,17 s3,33 s
0–100 km/h3,93 s4,55 s
0–120 km/h4,96 s6,12 s
0–160 km/h7,56 s10,37 s
0–200 km/h11,31 s16,69 s
400 m standing start11,73 s12,82 s
1,000 m standing start20,92 s23,34 s
Top speed limited307 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

Giulia Quadrifoglio

3,10kg/hpratio better by 1,79 kg/hp
CharacteristicValueDetail
Power510 hpPending
Torque600 Nm
Weight1 580 kgmanufacturer kerb weight
Drivetrain—
Gearbox8-speed automatic
BMW

M550d xDrive Touring G30

4,89kg/hpcompensated by −375 kg
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight1 955 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the Giulia Quadrifoglio hits 100 km/h in 3.93 s versus 4.56 s for the Bmw M550d xDrive Touring. At this point, the Giulia Quadrifoglio leads by 0.63 s and sits roughly 2 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Giulia Quadrifoglio is doing 164 km/h against 144 km/h for the Bmw M550d xDrive Touring. The gap is 0.53 s. The gap remains stable from the start.

At 400 metres standing start, the Giulia Quadrifoglio crosses the line in 11.73 s versus 12.82 s. The 1.09 s gap represents roughly 53 m of track — a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Giulia Quadrifoglio continues to build its lead. At 600 metres, it runs at 228 km/h versus 200 km/h. At 1,000 metres, the Giulia Quadrifoglio finishes in 20.92 s versus 23.33 s, with a 2.42 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Giulia Quadrifoglio is capped at 307 km/h, the Bmw M550d xDrive Touring 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 (3.10 kg/hp vs 4.89 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.01 seconds. The 0.63 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 Giulia Quadrifoglio
Bmw M5 CSMercedes Maybach S 680Audi S8
Instead of M550d xDrive Touring G30
Audi A6 Avant TFSI quattro S tronic 270 kWAudi S5 AvantAudi A6 Avant TDI quattro S tronic 220 kW

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Frequently asked questions

Sur 0–100 km/h, Giulia Quadrifoglio gagne (3,93 s vs 4,55 s).

Giulia Quadrifoglio passe de 0 à 100 km/h en 3,93 secondes (simulation calibrée).

Giulia Quadrifoglio : 510 hp, ratio 3,10 kg/hp. M550d xDrive Touring G30 : 400 hp, ratio 4,89 kg/hp.

Giulia Quadrifoglio : 307 km/h. M550d xDrive Touring G30 : 250 km/h.