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Home›Duel›BMW M240i vs Audi S3

Performance comparison

BMW M240i Convertible F44 vs Audi S3 Sportback: 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.

BMWPetrolFaster

M240i Convertible F44

340 hp · 500 Nm · 1,660 kg · 2021

VS
AudiPetrol

S3 Sportback

333 hp · 420 Nm · 1,535 kg · 2026

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.

M240i Convertible F44S3 Sportback
0–100 km/h4,66 s4,64 s+0,02 s
400 m standing start12,85 s−0,24 s13,09 s
1,000 m standing start23,32 s−0,40 s23,72 s
Top speed (electronically limited)250 km/h250 km/h
Power-to-weight ratio4,88 kg/hp4,61 kg/hpbetter ratio

Watch the race

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

BMWPetrolM240i Convertible F44
Speed
0km/h
Timer
0,00s
Distance
0m
AudiPetrolS3 Sportback
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.

PalierM240i Convertible F44S3 Sportback
0–30 km/h1,27 s1,23 stight gap
0–50 km/h2,12 s2,05 stight gap
0–80 km/h3,46 s3,41 stight gap
0–100 km/h4,66 s4,64 stight gap
0–120 km/h6,12 s6,63 s
0–160 km/h10,15 s10,91 s
0–200 km/h16,41 s17,45 s
400 m standing start12,85 s13,09 s
1,000 m standing start23,32 s23,72 s
Top speed limited250 km/h250 km/h

Under the bonnet

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

BMW

M240i Convertible F44

4,88kg/hpcompensated by −125 kg
CharacteristicValueDetail
Power340 hp6 cyl
Torque500 Nm
Weight1 660 kgmanufacturer kerb weight
DrivetrainM240i Convertible
Gearbox8-speed Steptronic Sport transmission
Audi

S3 Sportback

4,61kg/hpratio better by 0,27 kg/hp
CharacteristicValueDetail
Power333 hpPending
Torque420 Nm
Weight1 535 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox7-speed S tronic

The start: 0 to 100 km/h

Off the line, the S3 Sportback hits 100 km/h in 4.64 s versus 4.66 s for the Bmw M240i Convertible. The 0.02 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the Bmw M240i Convertible is doing 145 km/h against 139 km/h for the S3 Sportback. The gap is 0.10 s. The gap widens compared to the 0-100.

At 400 metres standing start, the Bmw M240i Convertible crosses the line in 12.85 s versus 13.08 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 Bmw M240i Convertible continues to build its lead. At 600 metres, it runs at 201 km/h versus 197 km/h. At 1,000 metres, the Bmw M240i Convertible finishes in 23.31 s versus 23.72 s, with a 0.40 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 Bmw M240i Convertible and the S3 Sportback 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 (4.88 kg/hp vs 4.61 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.65 seconds. The 0.02 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 M240i Convertible F44
Bmw 840i xDrive ConvertibleBmw 230i ConvertibleBmw Z4 sDrive30i
Instead of S3 Sportback
Bmw M140i xDriveBmw M140iBmw M135i xDrive

Autres duels qui pourraient vous intéresser

BmwVSMercedes

M240i Convertible vs Maybach SL 680 Monogram Series Roadster

AudiVSBmw

S3 Sportback vs 840i xDrive Convertible

AudiVSBmw

S3 Sportback vs 420i Convertible

AudiVSBmw

S3 Sportback vs 420d Convertible

Frequently asked questions

Sur 0–100 km/h, S3 Sportback gagne (4,64 s vs 4,66 s).

M240i Convertible F44 passe de 0 à 100 km/h en 4,66 secondes (simulation calibrée).

M240i Convertible F44 : 340 hp, ratio 4,88 kg/hp. S3 Sportback : 333 hp, ratio 4,61 kg/hp.

M240i Convertible F44 : 250 km/h. S3 Sportback : 250 km/h.