Over 0–100 km/h, M140i F20LCI wins (4,54 s vs 6,36 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.
| M140i F20LCI | 123 xDrive F70 | |
|---|---|---|
| 0–100 km/h | 4,54 s−1,82 s | 6,36 s |
| 400 m standing start | 12,60 s−1,95 s | 14,55 s |
| 1,000 m standing start | 22,65 s−3,97 s | 26,62 s |
| Top speed (electronically limited) | 250 km/h+4 km/h | 246 km/h |
| Power-to-weight ratio | 4,32 kg/hpbetter ratio | 7,02 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 | M140i F20LCI | 123 xDrive F70 |
|---|---|---|
| 0–30 km/h | 1,37 s | 1,42 stight gap |
| 0–50 km/h | 2,25 s | 2,39 stight gap |
| 0–80 km/h | 3,51 s | 4,40 s |
| 0–100 km/h | 4,54 s | 6,36 s |
| 0–120 km/h | 5,82 s | 8,71 s |
| 0–160 km/h | 9,32 s | 15,55 s |
| 0–200 km/h | 14,54 s | 27,54 s |
| 400 m standing start | 12,60 s | 14,55 s |
| 1,000 m standing start | 22,65 s | 26,62 s |
| Top speed limited | 250 km/h | 246 km/h |
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 | 500 Nm | |
| Weight | 1 470 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 218 hp | 4 cyl |
| Torque | 320 Nm | |
| Weight | 1 530 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 7-speed Steptronic transmission with dual clutch |
Off the line, the Bmw M140i hits 100 km/h in 4.54 s versus 6.36 s for the Bmw 123 xDrive. At this point, the Bmw M140i leads by 1.82 s and sits roughly 8 m ahead.
At 200 metres, the Bmw M140i is doing 151 km/h against 125 km/h for the Bmw 123 xDrive. The gap is 1.08 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw M140i crosses the line in 12.60 s versus 14.55 s. The 1.95 s gap represents roughly 81 m of track - a gap visible to the naked eye.
Past 400 metres, the Bmw M140i continues to build its lead. At 600 metres, it runs at 210 km/h versus 174 km/h. At 1,000 metres, the Bmw M140i finishes in 22.65 s versus 26.62 s, with a 3.97 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 246 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the Bmw M140i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Bmw 123 xDrive at 246 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 combustion powertrains, the difference comes down to power-to-weight ratio (4.32 kg/hp vs 7.02 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.11 seconds. The 1.82 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, M140i F20LCI wins (4,54 s vs 6,36 s).
M140i F20LCI goes from 0 to 100 km/h in 4,54 seconds (calibrated simulation).
M140i F20LCI: 340 hp, ratio 4,32 kg/hp. 123 xDrive F70: 218 hp, ratio 7,02 kg/hp.
M140i F20LCI: 250 km/h. 123 xDrive F70: 246 km/h.