Over 0–100 km/h, 840d xDrive Gran Coupe G15 and 840i G15 are neck and neck (4,90 s vs 4,95 s, no significant gap).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 840d xDrive Gran Coupe G15 | 840i G15 | Gap |
|---|---|---|---|
| 0–100 km/h | 4.90 s | 4.95 s | 0.05 s · 840d xDrive Gran Coupe G15 |
| 400 m standing start | 13.21 s | 13.16 s | 0.05 s · 840i G15 |
| 1,000 m standing start | 24.10 s | 23.75 s | 0.35 s · 840i G15 |
| Top speed (electronically limited) | 250 km/h | 250 km/h | Same |
| Power-to-weight ratio | 5.87 kg/hp | 5.03 kg/hp | better ratio · 840i G15 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 840d xDrive Gran Coupe G15 | 840i G15 |
|---|---|---|
| 0–30 km/h | 1.19 s · tight gap | 1.33 s |
| 0–50 km/h | 1.96 s | 2.23 s |
| 0–80 km/h | 3.50 s | 3.66 s |
| 0–100 km/h | 4.90 s · tight gap | 4.95 s |
| 0–120 km/h | 6.64 s | 6.53 s · tight gap |
| 0–160 km/h | 11.45 s | 10.83 s |
| 0–200 km/h | 18.76 s | 17.36 s |
| 400 m standing start | 13.21 s | 13.16 s · tight gap |
| 1,000 m standing start | 24.10 s | 23.75 s |
| Top speed limited | 250 km/h | 250 km/h |
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 340 hp | 6 cyl |
| Torque | 700 Nm | |
| Weight | 1 995 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 340 hp | 6 cyl |
| Torque | 500 Nm | |
| Weight | 1 710 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
Off the line, the 840d xDrive Gran Coupe hits 100 km/h in 4.90 s versus 4.95 s for the 840i. The 0.05 s gap is negligible: both vehicles are neck and neck.
At 200 metres, the 840d xDrive Gran Coupe is doing 138 km/h against 142 km/h for the 840i. The gap is 0.07 s. The gap remains stable from the start.
At 400 metres standing start, the 840i crosses the line in 13.15 s versus 13.20 s. The 0.05 s gap represents roughly 2 m of track - barely a car length.
Past 400 metres, the 840i continues to build its lead. At 600 metres, it runs at 198 km/h versus 193 km/h. At 1,000 metres, the 840i finishes in 23.75 s versus 24.10 s, with a 0.35 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.
Both rivals share the same electronic speed cap: the 840d xDrive Gran Coupe and the 840i are governed to 250 (i.e. 155 mph - industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.
With two combustion powertrains, the difference comes down to power-to-weight ratio (5.87 kg/hp vs 5.03 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.67 seconds. The 0.05 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 840d xDrive Gran Coupe G15 and 840i G15 are neck and neck (4,90 s vs 4,95 s, no significant gap).
840d xDrive Gran Coupe G15 goes from 0 to 100 km/h in 4,90 seconds (calibrated simulation).
840d xDrive Gran Coupe G15: 340 hp, ratio 5,87 kg/hp. 840i G15: 340 hp, ratio 5,03 kg/hp.
840d xDrive Gran Coupe G15: 250 km/h. 840i G15: 250 km/h.