I'm not implying anything, Octy. However, it's pretty obvious that a lot of drivers don't maintain their cars to a high standard and the way grant aid is structured they are rewarded for what may amount to endangering the public. Again, without the numbers it's difficult to draw any conclusions from your brand new Prius maintenance experience but, as stated many many times, I'd be rather surprised if your getting out for less that the 1.3c/kilo my second hand Octavia has cost.
I don't dispute that EVs make sense, particularly for drivers doing high kilometreage. The price of cars, be they new EVs or second hand diesels, is what is conspiring against those of us who don't want to work enough hours to cover high kilometreage. I'm not sure who we can blame for the state of the motor market but NTA ought to recognise such constraints and level the playing field by applying extensions to maximum vehicle ages to all drivers equally.