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AA5DieselvsB520iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsA5 · 520i

Audi A5 Sedan vs BMW 520i G30: 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
BMWPetrol

520i G30

184 hp · 290 Nm · 1,610 kg · 2020

Result · 0–100 km/h

AAudi A5 Sedan

7.79 s

Gap0.01 sNot a significant gap
BBMW 520i G30

7.78 s

Summary · Caralogy simulation
MeasureA5 Sedan520i G30Gap
0–100 km/h7.79 s7.78 s0.01 s · 520i G30
400 m standing start15.74 s15.64 s0.10 s · 520i G30
1,000 m standing start28.63 s28.79 s0.16 s · A5 Sedan
Top speed (electronically limited)242 km/h232 km/h10 km/h · A5 Sedan
Power-to-weight ratio8.92 kg/hp8.75 kg/hpbetter ratio · 520i G30

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
BMWPetrol520i G30
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 Sedan520i G30
0–30 km/h1.83 s1.38 s
0–50 km/h3.04 s2.60 s
0–80 km/h5.46 s5.29 s
0–100 km/h7.79 s7.78 s · tight gap
0–120 km/h10.74 s11.00 s
0–160 km/h19.81 s20.46 s
0–200 km/h34.87 s39.01 s
400 m standing start15.74 s15.64 s · tight gap
1,000 m standing start28.63 s28.79 s
Top speed242 km/h232 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 −210 kg
CharacteristicValueDetail
Power204 hpPending
Torque400 Nm
Weight1 820 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox7-speed S tronic
BMW

520i G30

8,75kg/hpratio better by 0,17 kg/hp
CharacteristicValueDetail
Power184 hp4 cyl
Torque290 Nm
Weight1 610 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 520i hits 100 km/h in 7.78 s versus 7.79 s for the A5 Sedan. The 0.01 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the 520i is doing 115 km/h against 117 km/h for the A5 Sedan. The gap is 0.22 s. The gap widens compared to the 0-100.

At 400 metres standing start, the 520i crosses the line in 15.64 s versus 15.74 s. The 0.09 s gap represents roughly 4 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the situation changes. The 520i maxes out at 232 km/h while the A5 Sedan keeps accelerating towards 242 km/h. At 600 metres, the gap has dropped to 0.03 s.

Around 685 metres, both vehicles are level. This is the inversion point: the A5 Sedan overcomes its launch deficit thanks to a 10 km/h higher top speed.

At 1,000 metres, the A5 Sedan finishes in 28.62 s versus 28.78 s. The 0.16 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 Sedan is capped at 242 km/h, the 520i at 235 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 8.75 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.92 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 A5 Sedan
Audi A6 Sedan
Instead of 520i G30
BMW 320d

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A6 Avant TFSI S tronic 150 kW vs 520i

AudiVSBMW

A5 Sedan vs 320d

AudiVSBMW

A6 Sedan vs 520i

Frequently asked questions

Over 0–100 km/h, A5 Sedan and 520i G30 are neck and neck (7,78 s vs 7,79 s, no significant gap).

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

A5 Sedan: 204 hp, ratio 8,92 kg/hp. 520i G30: 184 hp, ratio 8,75 kg/hp.

A5 Sedan: 242 km/h. 520i G30: 232 km/h.