An e60 520 is going to be a disapointment moving from an e39 530d, one of the best cars bmw ever made- to well a 520! There slow, harsh ride, no way near as comfortable as an e39. Ive had loads of e39s and e60s, and id drive an e39 530d every day over an e60! But if you want move up buy a 530d over a 520