I drive 65,000km a year, mostly to Dublin, Cork and Galway and Dublin Airport. I have owned four 520d M Sports and on average get 40mpg. I am changing again and very interested in hybrid and considering a 530e M Sport with 26,000km on it. I change the car about every 15 months as I do high mileage and would like to go greener but running costs are my main concern. Currently I get the VAT back on diesel as I am VAT registered. I'm conscious that we will eventually have to go this way and wondering should I make that move now. What do you think?