Over 0–100 km/h, GLC 400 4MATIC X254 wins (4,33 s vs 7,41 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 | Atto 3 Extended Range | |
|---|---|---|
| 0–100 km/h | 4,33 s−3,08 s | 7,41 s |
| 400 m standing start | 12,66 s−2,91 s | 15,57 s |
| 1,000 m standing start | 23,35 s−5,85 s | 29,20 s |
| Top speed (electronically limited) | 210 km/h+50 km/h | 160 km/h |
| Power-to-weight ratio | 5,18 kg/hpbetter ratio | 8,58 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 | Atto 3 Extended Range |
|---|---|---|
| 0–30 km/h | 1,17 s | 1,96 s |
| 0–50 km/h | 1,94 s | 3,27 s |
| 0–80 km/h | 3,21 s | 5,43 s |
| 0–100 km/h | 4,33 s | 7,41 s |
| 0–120 km/h | 5,77 s | 10,03 s |
| 0–160 km/h | 10,06 s | 19,03 s |
| 0–200 km/h | 16,35 s | - |
| 400 m standing start | 12,66 s | 15,57 s |
| 1,000 m standing start | 23,35 s | 29,20 s |
| Top speed | 210 km/h | 160 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 | 204 hp | Pending |
| Torque | 310 Nm | |
| Weight | 1 750 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | single-speed reduction |
Off the line, the GLC 400 4MATIC hits 100 km/h in 4.34 s versus 7.41 s for the Atto 3 Extended Range. At this point, the GLC 400 4MATIC leads by 3.08 s and sits roughly 25 m ahead.
At 200 metres, the GLC 400 4MATIC is doing 145 km/h against 121 km/h for the Atto 3 Extended Range. The gap is 2.03 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 15.57 s. The 2.91 s gap represents roughly 114 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 160 km/h. At 1,000 metres, the GLC 400 4MATIC finishes in 23.35 s versus 29.19 s, with a 5.85 s lead.
Both rivals are electronically governed, but not at the same level: the GLC 400 4MATIC is capped at 210 km/h, the Atto 3 Extended Range at 160 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 8.58 kg/hp) and transmission (Unknown vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.71 seconds. The 3.08 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 7,41 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. Atto 3 Extended Range: 204 hp, ratio 8,58 kg/hp.
GLC 400 4MATIC X254: 210 km/h. Atto 3 Extended Range: 160 km/h.