Over 0–100 km/h, GLC 400 4MATIC X254 wins (4,33 s vs 6,31 s).
Performance comparison
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
Simulation
Calibration
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
| GLC 400 4MATIC X254 | P7i | |
|---|---|---|
| 0–100 km/h | 4,33 s−1,97 s | 6,31 s |
| 400 m standing start | 12,66 s−1,91 s | 14,57 s |
| 1,000 m standing start | 23,35 s−3,03 s | 26,38 s |
| Top speed (electronically limited) | 210 km/h+10 km/h | 200 km/h |
| Power-to-weight ratio | 5,18 kg/hpbetter ratio | 7,18 kg/hp |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | GLC 400 4MATIC X254 | P7i |
|---|---|---|
| 0–30 km/h | 1,17 s | 1,66 s |
| 0–50 km/h | 1,94 s | 2,77 s |
| 0–80 km/h | 3,21 s | 4,62 s |
| 0–100 km/h | 4,33 s | 6,31 s |
| 0–120 km/h | 5,77 s | 8,47 s |
| 0–160 km/h | 10,06 s | 14,90 s |
| 0–200 km/h | 16,35 s | 25,20 s |
| 400 m standing start | 12,66 s | 14,57 s |
| 1,000 m standing start | 23,35 s | 26,38 s |
| Top speed | 210 km/h | 200 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 489 hp | Pending |
| Torque | 800 Nm | |
| Weight | 2 535 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Unknown |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 282 hp | Permanent Magnet Synchronous Motor |
| Torque | 430 Nm | |
| Weight | 2 025 kg | manufacturer kerb weight |
| Drivetrain | Propulsion | |
| Gearbox | Single-speed fixed gear |
Off the line, the GLC 400 4MATIC hits 100 km/h in 4.34 s versus 6.31 s for the P7i. At this point, the GLC 400 4MATIC leads by 1.97 s and sits roughly 18 m ahead.
At 200 metres, the GLC 400 4MATIC is doing 145 km/h against 129 km/h for the P7i. The gap is 1.35 s. The challenger starts to claw back ground.
At 400 metres standing start, the GLC 400 4MATIC crosses the line in 12.66 s versus 14.56 s. The 1.91 s gap represents roughly 81 m of track - a gap visible to the naked eye.
Past 400 metres, the GLC 400 4MATIC continues to build its lead. At 600 metres, it runs at 201 km/h versus 178 km/h. At 1,000 metres, the GLC 400 4MATIC finishes in 23.35 s versus 26.38 s, with a 3.03 s lead. Both vehicles have similar top speeds (210 vs 200 km/h), preventing any comeback.
The GLC 400 4MATIC features all-wheel drive (AWD) against the P7i’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.
Both rivals are electronically governed, but not at the same level: the GLC 400 4MATIC is capped at 210 km/h, the P7i at 200 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 electric powertrains, the difference comes down to power-to-weight ratio (5.18 kg/hp vs 7.18 kg/hp) and transmission (Unknown vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.78 seconds. The 1.97 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, GLC 400 4MATIC X254 wins (4,33 s vs 6,31 s).
GLC 400 4MATIC X254 goes from 0 to 100 km/h in 4,33 seconds (calibrated simulation).
GLC 400 4MATIC X254: 489 hp, ratio 5,18 kg/hp. P7i: 282 hp, ratio 7,18 kg/hp.
GLC 400 4MATIC X254: 210 km/h. P7i: 200 km/h.