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AA5vsB420iPetrol
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  • PerformancePerformance0-100, top speed
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  • SpecsA5 · 420i

Audi A5 Avant vs BMW 420i F32: 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 · 2026 vs 2020 · Methodology
AudiPetrol

A5 Avant

204 hp · 340 Nm · 1,710 kg · 2026

VS
BMWPetrolFaster

420i F32

184 hp · 300 Nm · 1,525 kg · 2020

Result · 0–100 km/h

AAudi A5 Avant

7.72 s

Gap0.28 sin favour of 420i
BBMW 420i F32

7.44 s

Summary · Caralogy simulation
MeasureA5 Avant420i F32Gap
0–100 km/h7.72 s7.44 s0.28 s · 420i F32
400 m standing start15.71 s15.38 s0.33 s · 420i F32
1,000 m standing start27.94 s28.23 s0.29 s · A5 Avant
Top speed (electronically limited)245 km/h238 km/h7 km/h · A5 Avant
Power-to-weight ratio8.38 kg/hp8.29 kg/hpbetter ratio · 420i F32

Watch the race

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

AudiPetrolA5 Avant
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol420i F32
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.
StageA5 Avant420i F32
0–30 km/h2.12 s1.42 s
0–50 km/h3.53 s2.53 s
0–80 km/h5.76 s5.09 s
0–100 km/h7.72 s7.44 s
0–120 km/h10.23 s10.39 s
0–160 km/h17.35 s19.05 s
0–200 km/h29.43 s35.17 s
400 m standing start15.71 s15.38 s
1,000 m standing start27.94 s28.23 s
Top speed245 km/h238 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.

Audi

A5 Avant

8,38kg/hpcompensated by −185 kg
CharacteristicValueDetail
Power204 hpPending
Torque340 Nm
Weight1 710 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox7-speed S tronic
BMW

420i F32

8,29kg/hpratio better by 0,09 kg/hp
CharacteristicValueDetail
Power184 hp4 cyl
Torque300 Nm
Weight1 525 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 420i hits 100 km/h in 7.44 s versus 7.72 s for the A5 Avant. At this point, the 420i leads by 0.28 s and sits roughly 18 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 420i is doing 117 km/h against 122 km/h for the A5 Avant. The gap is 0.55 s. The gap widens compared to the 0-100.

At 400 metres standing start, the 420i crosses the line in 15.38 s versus 15.70 s. The 0.32 s gap represents roughly 14 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the situation changes. The 420i maxes out at 238 km/h while the A5 Avant keeps accelerating towards 245 km/h. At 600 metres, the gap has dropped to 0.11 s.

Around 707 metres, both vehicles are level. This is the inversion point: the A5 Avant overcomes its launch deficit thanks to a 7 km/h higher top speed.

At 1,000 metres, the A5 Avant finishes in 27.94 s versus 28.23 s. The 0.29 s delta shows an extremely tight race.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the A5 Avant is capped at 245 km/h, the 420i at 240 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 (8.38 kg/hp vs 8.29 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.15 seconds. The 0.28 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 A5 Avant
Audi A5 Avant TFSI quattro S tronic 150 kWAudi A5 Avant
Instead of 420i F32
BMW 420iBMW 420i xDrive Gran CoupeBMW 420i Steptronic Gran Coupe

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A5 Avant vs 320i Sedan

AudiVSBMW

A5 Avant vs 420i

Frequently asked questions

Over 0–100 km/h, 420i F32 wins (7,44 s vs 7,72 s).

A5 Avant goes from 0 to 100 km/h in 7,72 seconds (calibrated simulation).

A5 Avant: 204 hp, ratio 8,38 kg/hp. 420i F32: 184 hp, ratio 8,29 kg/hp.

A5 Avant: 245 km/h. 420i F32: 238 km/h.