Can someone explain why one is taxed lower if you are driving a vehicle for business (e.g. a developer or builder) than a parent carrying their kids to school or to afterschool activities ? I have 5 kids so a 7 or 8 seater is a must and I cannot get my head around the fact that if I drive a large 4x4, that I pay 4X the Road Tax than someone carrying building material from one site to another in a Commercial version of the same vehicle. Both vehicles are the same size & relative weight, so why should the family be penalised ? Before someone says, "Why don't you buy a 1.6 Litre mid-sized MPV", ... Have you tried to squeeze 5-6 kids + all their gear into a Zafira or Scenic, or even the larger Galaxy ? It just does not work. Thanks