Greetings All, My first run in this site, Sitting in Australia am considering auto version of the above 2 cars. I want the size and comfort of a 5 series but am unsure as to which machine to go for. I value accelation and believe that I would be buying excellent technology in the V8 or am I best advised to run with the 530i? I would appreciate advice on this matter. Life is 50% country/ 50% city running. Is there a big diffrence in maintenance costs? Would appreciate any thought, Cheers.