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2kA was pretty standard for a high end DC motor controller back 20 years ago when people were doing EV conversions with Optima Yellow Top batteries and Warp9 DC motors. Doing it at 1200V is new, though.

It's not unexpected for a record-attempt car to have severely decreased range at top speed, they're pushing up against all the limiting factors at once, hard. I seem to recall reading something about the Bugatti Veyron only having 15 minutes of tyre life at full throttle, but this not being an issue because it only carried 12 minutes worth of fuel. :)



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