How it's calculated
EVs are grouped into power bands. Within a band you pay a base rate plus a fixed amount for every 10 kW (a '9,999 watt block') above the band's threshold, so the tax rises smoothly as output increases. Output above roughly 1,010 kW is a flat RM20,000.
Use your motor's kW figure from the vehicle Geran (Vehicle Ownership Certificate) under 'Keupayaan Enjin'. Do not use the battery's kWh capacity — that is a different measurement. For all-wheel-drive EVs with two motors, add both motors' output together.