Is More Flow Better, Is The Smallest Intake Port That Flows The Most The Best

Oh dear. 400hp is available at all times, is it?
Making it at low rpm and 13 gears available i'd say yes
Please explain this to us:

How can an electric engine be rated at 1000kW regardless of RPM???

We all know 1kW = 1.34HP so how does that work?
Here's a dyno of an electronic motor other than a aggressive 0-3000 rpm looks no different
eve_30kw288v.jpg