I'd say, go for the 530. I also thought, at start, why not go for the 525. Even made up my mind to order one, only to change to the 530i at the last minute. Got my 530 about 10 days ago. Finished the break-in as the book says. As soon as I saw the amazing 2k digits I started to push the car a little.. What can I say, glad I took the 530 and not the 525. Hapy moments. Good luck.