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AFocusvsBAPetrol
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  • SpecsFocus · A

Ford Focus ST 250 Gen3 vs Mercedes A 250 W177: 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.

compact · 2015 vs 2019 · Methodology
FordPetrol

Focus ST 250 Gen3

250 hp · 360 Nm · 1,390 kg · 2015

VS
MercedesPetrolFaster

A 250 W177

224 hp · 350 Nm · 1,450 kg · 2019

Result · 0–100 km/h

AFord Focus ST 250 Gen3

6.43 s

Gap0.17 sin favour of A 250
BMercedes A 250 W177

6.26 s

Summary · Caralogy simulation
MeasureFocus ST 250 Gen3A 250 W177Gap
0–100 km/h6.43 s6.26 s0.17 s · A 250 W177
400 m standing start14.56 s14.39 s0.17 s · A 250 W177
1,000 m standing start25.77 s25.56 s0.21 s · A 250 W177
Top speed (electronically limited)254 km/h250 km/h4 km/h · Focus ST 250 Gen3
Power-to-weight ratio5.56 kg/hp6.47 kg/hpbetter ratio · Focus ST 250 Gen3

Watch the race

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

FordPetrolFocus ST 250 Gen3
Speed
0km/h
Timer
0,00s
Distance
0m
MercedesPetrolA 250 W177
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.
StageFocus ST 250 Gen3A 250 W177
0–30 km/h1.83 s · tight gap1.96 s
0–50 km/h3.06 s3.04 s · tight gap
0–80 km/h5.09 s4.70 s
0–100 km/h6.43 s6.26 s
0–120 km/h8.42 s8.08 s
0–160 km/h13.56 s13.25 s
0–200 km/h21.65 s21.39 s
400 m standing start14.56 s14.39 s
1,000 m standing start25.77 s25.56 s
Top speed limited254 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.

Ford

Focus ST 250 Gen3

5,56kg/hpratio better by 0,91 kg/hp
CharacteristicValueDetail
Power250 hpPending
Torque360 Nm
Weight1 390 kgmanufacturer kerb weight
Drivetrain-
Gearbox6-speed manual
Mercedes

A 250 W177

6,47kg/hpcompensated by −60 kg
CharacteristicValueDetail
Power224 hpPending
Torque350 Nm
Weight1 450 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox7G-DCT dual-clutch

The start: 0 to 100 km/h

Off the line, the A 250 hits 100 km/h in 6.26 s versus 6.43 s for the Focus ST 250 Gen3. At this point, the A 250 leads by 0.17 s and sits roughly 3 m ahead.

From 100 km/h to 400 metres

At 200 metres, the A 250 is doing 134 km/h against 134 km/h for the Focus ST 250 Gen3. The gap is 0.16 s. The gap remains stable from the start.

At 400 metres standing start, the A 250 crosses the line in 14.39 s versus 14.55 s. The 0.16 s gap represents roughly 8 m of track - barely a car length.

Beyond 400 metres: top speed comes into play

Past 400 metres, the A 250 continues to build its lead. At 600 metres, it runs at 188 km/h versus 188 km/h. At 1,000 metres, the A 250 finishes in 25.56 s versus 25.77 s, with a 0.21 s lead. Both vehicles have similar top speeds (254 vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

On paper, the Focus ST 250 Gen3 combines 250 hp, 360 Nm and 1,390 kg - a clear theoretical edge over the A 250. Yet the A 250 launches quicker. At standstill, both motors deliver peak torque from 0 rpm: the decisive factor is no longer raw power, but available grip. If the A 250 has a better traction coefficient (tyres, weight distribution, traction control calibration), it puts down more force despite inferior specs - exactly what the simulation reflects, calibrated on manufacturer 0-100 km/h times.

Electronically capped at 250 (i.e. 155 mph - industry threshold) km/h, the A 250 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 (5.56 kg/hp vs 6.47 kg/hp) and transmission (Manual vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.42 seconds. The 0.17 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.

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Frequently asked questions

Over 0–100 km/h, A 250 W177 wins (6,26 s vs 6,43 s).

Focus ST 250 Gen3 goes from 0 to 100 km/h in 6,43 seconds (calibrated simulation).

Focus ST 250 Gen3: 250 hp, ratio 5,56 kg/hp. A 250 W177: 224 hp, ratio 6,47 kg/hp.

Focus ST 250 Gen3: 254 km/h. A 250 W177: 250 km/h.