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AA5vsB420dDiesel
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  • PerformancePerformance0-100, top speed
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  • SpecsA5 · 420d

Audi A5 Sedan vs BMW 420d xDrive 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
AudiDiesel

A5 Sedan

204 hp · 400 Nm · 1,820 kg · 2026

VS
BMWDieselFaster

420d xDrive F32

190 hp · 400 Nm · 1,670 kg · 2020

Result · 0–100 km/h

AAudi A5 Sedan

7.79 s

Gap0.31 sin favour of 420d xDrive
BBMW 420d xDrive F32

7.48 s

Summary · Caralogy simulation
MeasureA5 Sedan420d xDrive F32Gap
0–100 km/h7.79 s7.48 s0.31 s · 420d xDrive F32
400 m standing start15.74 s15.44 s0.30 s · 420d xDrive F32
1,000 m standing start28.63 s28.37 s0.26 s · 420d xDrive F32
Top speed (electronically limited)242 km/h237 km/h5 km/h · A5 Sedan
Power-to-weight ratio8.92 kg/hp8.79 kg/hpbetter ratio · 420d xDrive F32

Watch the race

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

AudiDieselA5 Sedan
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel420d xDrive 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 Sedan420d xDrive F32
0–30 km/h1.83 s1.44 s
0–50 km/h3.04 s2.53 s
0–80 km/h5.46 s5.09 s
0–100 km/h7.79 s7.48 s
0–120 km/h10.74 s10.50 s
0–160 km/h19.81 s19.45 s
0–200 km/h34.87 s36.38 s
400 m standing start15.74 s15.44 s
1,000 m standing start28.63 s28.37 s
Top speed242 km/h237 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 Sedan

8,92kg/hpcompensated by −150 kg
CharacteristicValueDetail
Power204 hpPending
Torque400 Nm
Weight1 820 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox7-speed S tronic
BMW

420d xDrive F32

8,79kg/hpratio better by 0,13 kg/hp
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 670 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 420d xDrive hits 100 km/h in 7.48 s versus 7.79 s for the A5 Sedan. At this point, the 420d xDrive leads by 0.31 s and sits roughly 9 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 420d xDrive is doing 117 km/h against 117 km/h for the A5 Sedan. The gap is 0.34 s. The gap remains stable from the start.

At 400 metres standing start, the 420d xDrive crosses the line in 15.43 s versus 15.74 s. The 0.30 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 420d xDrive continues to build its lead. At 600 metres, it runs at 162 km/h versus 162 km/h. At 1,000 metres, the 420d xDrive finishes in 28.37 s versus 28.62 s, with a 0.25 s lead. Both vehicles have similar top speeds (242 vs 237 km/h), preventing any comeback.

What the numbers don’t tell you

The 420d xDrive features all-wheel drive (AWD) against the A5 Sedan’s FWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Both rivals are electronically governed, but not at the same level: the A5 Sedan is capped at 242 km/h, the 420d xDrive at 238 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 (8.92 kg/hp vs 8.79 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.41 seconds. The 0.31 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 420d xDrive F32
BMW 420dBMW 420d xDriveBMW 420d

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Frequently asked questions

Over 0–100 km/h, 420d xDrive F32 wins (7,48 s vs 7,79 s).

A5 Sedan goes from 0 to 100 km/h in 7,79 seconds (calibrated simulation).

A5 Sedan: 204 hp, ratio 8,92 kg/hp. 420d xDrive F32: 190 hp, ratio 8,79 kg/hp.

A5 Sedan: 242 km/h. 420d xDrive F32: 237 km/h.