Prior to 2013, Cat A COE did not have a power limit. These are the cars that make well over 130bhp and are still eligible for a Cat A COE.
To remove another hurdle to adoption of cleaner vehicles, road tax for mass-market electric cars will be lowered to be on par with equivalent ICE models.
There is no decision yet to adjust road tax when the next-generation electronic road pricing system kicks in from 2023.