DS DS9 E-Tense 250 vs BYD Dolphin Boost 150kW: which is truly faster?

Off the line, the Dolphin Boost 150kW hits 100 km/h in 6.93 s versus 8.36 s for the DS9 E-Tense 250. At this point, the Dolphin Boost 150kW leads by 1.43 s and sits roughly 19 m ahead.

At 200 metres, the Dolphin Boost 150kW is doing 126 km/h against 121 km/h for the DS9 E-Tense 250. The gap is 0.94 s. The challenger starts to claw back ground.

At 400 metres standing start, the Dolphin Boost 150kW crosses the line in 15.13 s versus 16.22 s. The 1.08 s gap represents roughly 45 m of track — a gap visible to the naked eye.

Past 400 metres, the situation changes. The Dolphin Boost 150kW maxes out at 160 km/h while the DS9 E-Tense 250 keeps accelerating towards 235 km/h. At 600 metres, the gap has dropped to 1.02 s.

Around 976 metres, both vehicles are level. This is the inversion point: the DS9 E-Tense 250 overcomes its launch deficit thanks to a 75 km/h higher top speed.

At 1,000 metres, the DS9 E-Tense 250 finishes in 28.57 s versus 28.66 s. The 0.09 s delta shows an extremely tight race.

Electronically capped at 160 km/h, the Dolphin Boost 150kW never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor — it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two plug-in hybrid powertrains, the difference comes down to power-to-weight ratio (7.51 kg/hp vs 7.30 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.32 seconds. The 1.43 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.