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Home›Duel›Audi S8 vs Porsche Cayman

Performance comparison

Audi S8 vs Porsche Cayman S PDK 987: 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.

AudiPetrolFaster

S8

571 hp · 800 Nm · 2,220 kg · 2025

VS
PorschePetrol

Cayman S PDK 987

324 hp · 370 Nm · 1,375 kg · 2010

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.

S8Cayman S PDK 987
0–100 km/h3,83 s−0,84 s4,67 s
400 m standing start11,81 s−0,79 s12,60 s
1,000 m standing start21,27 s−1,29 s22,56 s
Top speed (electronically limited)250 km/h286 km/h−36 km/h
Power-to-weight ratio3,89 kg/hpbetter ratio4,24 kg/hp

Watch the race

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

AudiPetrolS8
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrolCayman S PDK 987
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.

PalierS8Cayman S PDK 987
0–30 km/h1,07 s1,32 s
0–50 km/h1,78 s2,20 s
0–80 km/h2,88 s3,59 s
0–100 km/h3,83 s4,67 s
0–120 km/h4,97 s5,86 s
0–160 km/h7,99 s9,21 s
0–200 km/h12,24 s14,23 s
400 m standing start11,81 s12,60 s
1,000 m standing start21,27 s22,56 s
Top speed limited250 km/h286 km/h

Under the bonnet

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

Audi

S8

3,89kg/hpratio better by 0,36 kg/hp
CharacteristicValueDetail
Power571 hpPending
Torque800 Nm
Weight2 220 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed tiptronic
Porsche

Cayman S PDK 987

4,24kg/hpcompensated by −845 kg
CharacteristicValueDetail
Power324 hp6 cyl
Torque370 Nm
Weight1 375 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxDUAL_CLUTCH

The start: 0 to 100 km/h

Off the line, the S8 hits 100 km/h in 3.83 s versus 4.67 s for the Cayman S PDK. At this point, the S8 leads by 0.84 s and sits roughly 10 m ahead.

From 100 km/h to 400 metres

At 200 metres, the S8 is doing 157 km/h against 151 km/h for the Cayman S PDK. The gap is 0.63 s. The challenger starts to claw back ground.

At 400 metres standing start, the S8 crosses the line in 11.81 s versus 12.60 s. The 0.79 s gap represents roughly 41 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the S8 continues to build its lead. At 600 metres, it runs at 222 km/h versus 212 km/h. At 1,000 metres, the S8 finishes in 21.26 s versus 22.56 s, with a 1.29 s lead. Despite a higher top speed (286 km/h), the Cayman S PDK never recovers its launch deficit.

What the numbers don’t tell you

The S8 features all-wheel drive (AWD) against the Cayman S PDK’s RWD. 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.

Electronically capped at 250 (i.e. 155 mph - industry threshold) km/h, the S8 never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.89 kg/hp vs 4.24 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.63 seconds. The 0.84 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 S8
Bmw M5 CSMercedes Maybach S 680Porsche Panamera Turbo
Instead of Cayman S PDK 987
Mercedes V 300 d 4MATIC (long)Bmw 225i xDrive Active TourerMercedes V 300 d 4MATIC

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Z4 M40i vs Cayman S PDK

Frequently asked questions

Over 0–100 km/h, S8 wins (3,83 s vs 4,67 s).

S8 goes from 0 to 100 km/h in 3,83 seconds (calibrated simulation).

S8: 571 hp, ratio 3,89 kg/hp. Cayman S PDK 987: 324 hp, ratio 4,24 kg/hp.

S8: 250 km/h. Cayman S PDK 987: 286 km/h.