Over 0–100 km/h, Z4 sDrive30i G29 wins (5,45 s vs 6,27 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 128ti F40 | Z4 sDrive30i G29 | Gap |
|---|---|---|---|
| 0–100 km/h | 6.27 s | 5.45 s | 0.82 s · Z4 sDrive30i G29 |
| 400 m standing start | 14.44 s | 13.71 s | 0.73 s · Z4 sDrive30i G29 |
| 1,000 m standing start | 25.87 s | 24.82 s | 1.05 s · Z4 sDrive30i G29 |
| Top speed (electronically limited) | 250 km/h | 250 km/h | Same |
| Power-to-weight ratio | 5.45 kg/hp | 5.54 kg/hp | better ratio · 128ti F40 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 128ti F40 | Z4 sDrive30i G29 |
|---|---|---|
| 0–30 km/h | 1.81 s | 1.46 s |
| 0–50 km/h | 3.01 s | 2.42 s |
| 0–80 km/h | 4.76 s | 4.03 s |
| 0–100 km/h | 6.27 s | 5.45 s |
| 0–120 km/h | 8.20 s | 7.26 s |
| 0–160 km/h | 13.63 s | 12.26 s |
| 0–200 km/h | 22.97 s | 20.34 s |
| 400 m standing start | 14.44 s | 13.71 s |
| 1,000 m standing start | 25.87 s | 24.82 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 | 265 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 445 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic Sport transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 258 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 430 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the Z4 sDrive30i hits 100 km/h in 5.45 s versus 6.27 s for the 128ti. At this point, the Z4 sDrive30i leads by 0.82 s and sits roughly 13 m ahead.
At 200 metres, the Z4 sDrive30i is doing 136 km/h against 132 km/h for the 128ti. The gap is 0.61 s. The challenger starts to claw back ground.
At 400 metres standing start, the Z4 sDrive30i crosses the line in 13.70 s versus 14.44 s. The 0.74 s gap represents roughly 33 m of track - a gap visible to the naked eye.
Past 400 metres, the Z4 sDrive30i continues to build its lead. At 600 metres, it runs at 189 km/h versus 184 km/h. At 1,000 metres, the Z4 sDrive30i finishes in 24.81 s versus 25.86 s, with a 1.05 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 128ti and the Z4 sDrive30i 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 (5.45 kg/hp vs 5.54 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.33 seconds. The 0.82 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, Z4 sDrive30i G29 wins (5,45 s vs 6,27 s).
128ti F40 goes from 0 to 100 km/h in 6,27 seconds (calibrated simulation).
128ti F40: 265 hp, ratio 5,45 kg/hp. Z4 sDrive30i G29: 258 hp, ratio 5,54 kg/hp.
128ti F40: 250 km/h. Z4 sDrive30i G29: 250 km/h.