How much did LEC’s ERS issue (2kW, or 2.7hp) affect top speed? Just 0.3 km/h…

So Vasseur’s statement seems off.

Vasseur "We lacked, I think, 2kW, not much, but enough to make Charles unable to overtake".

Let’s check the numbers:
🔋 PU power: ~1000hp, or ~735kW;
🪫 With issue: ~733kW.

- Drag coefficient unchanged;
- Drag POWER grows with the CUBE of speed:;
🔋 Top speed: ~350km/h;
🪫 With issue: 350km/h*(735kW/733kW)^1/3=349.7km/h... 0.3km/h reduction.

Possible explanations:
1) He meant 20kW → ~3 km/h loss;
2) Downplayed the issue;
3) It was 2kW, but irrelevant for overtaking;
4) It was 2kW but mattered via compounding: less acceleration→farther back→weaker slipstream→even less accel. ... (unlikely).

The only certainty? The physics. 🤣