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Mercedes C 400 e 4MATIC Limousine W206 vs Audi S4 TDI: 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 · 2024 vs 2020 · Methodology
MercedesPHEV

C 400 e 4MATIC Limousine W206

381 hp · 650 Nm · 2,130 kg · 2024

VS
AudiDieselFaster

S4 TDI

354 hp · 700 Nm · 1,805 kg · 2020

Result · 0–100 km/h

AMercedes C 400 e 4MATIC Limousine W206

5.29 s

Gap0.46 sin favour of S4 TDI
BAudi S4 TDI

4.83 s

Summary · Caralogy simulation
MeasureC 400 e 4MATIC Limousine W206S4 TDIGap
0–100 km/h5.29 s4.83 s0.46 s · S4 TDI
400 m standing start13.55 s13.12 s0.43 s · S4 TDI
1,000 m standing start24.54 s23.86 s0.68 s · S4 TDI
Top speed (electronically limited)240 km/h250 km/h10 km/h · S4 TDI
Power-to-weight ratio5.59 kg/hp5.10 kg/hpbetter ratio · S4 TDI

Watch the race

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

MercedesPHEVC 400 e 4MATIC Limousine W206
Speed
0km/h
Timer
0,00s
Distance
0m
AudiDieselS4 TDI
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.
StageC 400 e 4MATIC Limousine W206S4 TDI
0–30 km/h1.36 s1.27 s · tight gap
0–50 km/h2.05 s · tight gap2.06 s
0–80 km/h3.73 s3.50 s
0–100 km/h5.29 s4.83 s
0–120 km/h7.11 s6.50 s
0–160 km/h12.14 s11.04 s
0–200 km/h19.52 s17.95 s
400 m standing start13.55 s13.12 s
1,000 m standing start24.54 s23.86 s
Top speed limited240 km/h250 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.

Mercedes

C 400 e 4MATIC Limousine W206

5,59kg/hpcompensated by −325 kg
CharacteristicValueDetail
Power381 hp4 cyl
Torque650 Nm
Weight2 130 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxUnknown
Audi

S4 TDI

5,10kg/hpratio better by 0,49 kg/hp
CharacteristicValueDetail
Power354 hpPending
Torque700 Nm
Weight1 805 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed tiptronic

The start: 0 to 100 km/h

Off the line, the S4 TDI hits 100 km/h in 4.84 s versus 5.29 s for the C 400 e 4MATIC Limousine. Despite lacking instant torque, 354 hp of power compensates. At this point, the S4 TDI leads by 0.46 s and sits roughly 4 m ahead.

From 100 km/h to 400 metres

At 200 metres, the S4 TDI is doing 140 km/h against 135 km/h for the C 400 e 4MATIC Limousine. The gap is 0.28 s. The challenger starts to claw back ground.

At 400 metres standing start, the S4 TDI crosses the line in 13.12 s versus 13.55 s. The 0.43 s gap represents roughly 20 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the S4 TDI continues to build its lead. At 600 metres, it runs at 195 km/h versus 191 km/h. At 1,000 metres, the S4 TDI finishes in 23.86 s versus 24.53 s, with a 0.68 s lead. Both vehicles have similar top speeds (240 vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the C 400 e 4MATIC Limousine is capped at 240 km/h, the S4 TDI at 250 (i.e. 155 mph - industry threshold) 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.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.28 seconds. The 0.46 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Frequently asked questions

Over 0–100 km/h, S4 TDI wins (4,83 s vs 5,29 s).

C 400 e 4MATIC Limousine W206 goes from 0 to 100 km/h in 5,29 seconds (calibrated simulation).

C 400 e 4MATIC Limousine W206: 381 hp, ratio 5,59 kg/hp. S4 TDI: 354 hp, ratio 5,10 kg/hp.

C 400 e 4MATIC Limousine W206: 240 km/h. S4 TDI: 250 km/h.