Hey good decision on choosing a BMW. And the e60 BMW is a beauty, look out for the lci model with the 19 inch spider alloys. Thee best rims for the e60. I highly recommend the 530d due to the fact that my friend has just bought a 2006 530d coming from a 2.0 litre diesel Mondeo and he's gets 100 miles from 20£ and the 530d is the one when it comes to power and economy. Also my brothers owns a 2009 e60 530d and he says he's 530d gives him more miles to the gallon than he's e60 525d. Treat yourself to a 530d and personal opinion, space grey looks amazing!! all the best.