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AM440iPetrolvsBS4Diesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsM440i · S4

BMW M440i G22 vs Audi S4 TDI: 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.

saloon · 2021 vs 2020 · Methodology
BMWPetrol

M440i G22

374 hp · 500 Nm · 1,695 kg · 2021

VS
AudiDiesel

S4 TDI

354 hp · 700 Nm · 1,805 kg · 2020

Result · 0–100 km/h

ABMW M440i G22

4.83 s

Gap0.01 sNot a significant gap
BAudi S4 TDI

4.83 s

Summary · Caralogy simulation
MeasureM440i G22S4 TDIGap
0–100 km/h4.83 s4.83 s0.01 s · M440i G22
400 m standing start12.93 s13.12 s0.19 s · M440i G22
1,000 m standing start23.15 s23.86 s0.71 s · M440i G22
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio4.53 kg/hp5.10 kg/hpbetter ratio · M440i G22

Watch the race

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

BMWPetrolM440i G22
Speed
0km/h
Timer
0,00s
Distance
0m
AudiDieselS4 TDI
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.
StageM440i G22S4 TDI
0–30 km/h1.39 s1.27 s · tight gap
0–50 km/h2.31 s2.06 s
0–80 km/h3.68 s3.50 s
0–100 km/h4.83 s · tight gap4.83 s
0–120 km/h6.24 s6.50 s
0–160 km/h10.05 s11.04 s
0–200 km/h15.69 s17.95 s
400 m standing start12.93 s13.12 s
1,000 m standing start23.15 s23.86 s
Top speed limited250 km/h250 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

M440i G22

4,53kg/hpratio better by 0,57 kg/hp
CharacteristicValueDetail
Power374 hpPending
Torque500 Nm
Weight1 695 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Audi

S4 TDI

5,10kg/hpcompensated by −110 kg
CharacteristicValueDetail
Power354 hpPending
Torque700 Nm
Weight1 805 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed tiptronic

The start: 0 to 100 km/h

Off the line, the M440i hits 100 km/h in 4.83 s versus 4.84 s for the S4 TDI. The 0.01 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the S4 TDI is doing 140 km/h against 146 km/h for the M440i. The gap is 0.01 s. The gap remains stable from the start.

At 400 metres standing start, the M440i crosses the line in 12.93 s versus 13.12 s. The 0.19 s gap represents roughly 9 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M440i continues to build its lead. At 600 metres, it runs at 205 km/h versus 195 km/h. At 1,000 metres, the M440i finishes in 23.15 s versus 23.86 s, with a 0.71 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the M440i and the S4 TDI are governed to 250 (i.e. 155 mph - industry threshold) 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 (4.53 kg/hp vs 5.10 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.47 seconds. The 0.01 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 M440i G22
BMW 430d xDriveBMW M440d xDrive
Instead of S4 TDI
Audi S5 Sedan

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BMWVSAudi

M440i vs S5 Sedan

AudiVSBMW

S4 TDI vs M340d xDrive

Frequently asked questions

Over 0–100 km/h, M440i G22 and S4 TDI are neck and neck (4,83 s vs 4,83 s, no significant gap).

M440i G22 goes from 0 to 100 km/h in 4,83 seconds (calibrated simulation).

M440i G22: 374 hp, ratio 4,53 kg/hp. S4 TDI: 354 hp, ratio 5,10 kg/hp.

M440i G22: 250 km/h. S4 TDI: 250 km/h.