Noj

Hi all thought this would be a good place to start as looking for a new used bmw convertible prob a 330 but I would appreciate any advice, horror stories, things to look out for and really anything else that I have missed out on. I want a petrol as lots of short trips and a 3 series looks liket he right size. I have heard the e46 m3 requires regular maintenance, is this true. And the 335 is one to leave alone so looking prob 2007 330 . Thoughts