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AM340ivsBS5Petrol
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  • SpecsM340i · S5

BMW M340i xDrive G20 vs Audi S5 Sedan: 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 · 2019 vs 2026 · Methodology
BMWPetrol

M340i xDrive G20

374 hp · 500 Nm · 1,670 kg · 2019

VS
AudiPetrol

S5 Sedan

367 hp · 550 Nm · 1,950 kg · 2026

Result · 0–100 km/h

ABMW M340i xDrive G20

4.46 s

Gap0.04 sNot a significant gap
BAudi S5 Sedan

4.50 s

Summary · Caralogy simulation
MeasureM340i xDrive G20S5 SedanGap
0–100 km/h4.46 s4.50 s0.04 s · M340i xDrive G20
400 m standing start12.57 s12.80 s0.23 s · M340i xDrive G20
1,000 m standing start22.70 s23.39 s0.69 s · M340i xDrive G20
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio4.47 kg/hp5.31 kg/hpbetter ratio · M340i xDrive G20

Watch the race

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

BMWPetrolM340i xDrive G20
Speed
0km/h
Timer
0,00s
Distance
0m
AudiPetrolS5 Sedan
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.
StageM340i xDrive G20S5 Sedan
0–30 km/h1.16 s1.11 s · tight gap
0–50 km/h1.93 s1.85 s · tight gap
0–80 km/h3.24 s3.22 s · tight gap
0–100 km/h4.46 s · tight gap4.50 s
0–120 km/h5.85 s6.11 s
0–160 km/h9.56 s10.43 s
0–200 km/h15.01 s16.98 s
400 m standing start12.57 s12.80 s
1,000 m standing start22.70 s23.39 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

M340i xDrive G20

4,47kg/hpratio better by 0,85 kg/hp
CharacteristicValueDetail
Power374 hpPending
Torque500 Nm
Weight1 670 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Audi

S5 Sedan

5,31kg/hpcompensated by −280 kg
CharacteristicValueDetail
Power367 hpPending
Torque550 Nm
Weight1 950 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox7-speed S tronic

The start: 0 to 100 km/h

Off the line, the M340i xDrive hits 100 km/h in 4.46 s versus 4.50 s for the S5 Sedan. The 0.04 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the M340i xDrive is doing 147 km/h against 142 km/h for the S5 Sedan. The gap is 0.07 s. The gap remains stable from the start.

At 400 metres standing start, the M340i xDrive crosses the line in 12.56 s versus 12.80 s. The 0.24 s gap represents roughly 12 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M340i xDrive continues to build its lead. At 600 metres, it runs at 207 km/h versus 198 km/h. At 1,000 metres, the M340i xDrive finishes in 22.70 s versus 23.38 s, with a 0.68 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 M340i xDrive and the S5 Sedan 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 (4.47 kg/hp vs 5.31 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.04 seconds. The 0.04 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, M340i xDrive G20 and S5 Sedan are neck and neck (4,46 s vs 4,50 s, no significant gap).

M340i xDrive G20 goes from 0 to 100 km/h in 4,46 seconds (calibrated simulation).

M340i xDrive G20: 374 hp, ratio 4,47 kg/hp. S5 Sedan: 367 hp, ratio 5,31 kg/hp.

M340i xDrive G20: 250 km/h. S5 Sedan: 250 km/h.