Just a quick note to introduce myself to the forum...I've always been enthralled with BMW's, but always talked myself out of them due to financial or potential reliability issues. Last week, I experienced a co-workers 2002 M5 & believe that I am now hooked on them for life. I like the looks of the new 3 series, but find them a bit too $$ & would like something with a bit more room (I currently drive a Subaru WRX). Additionally, I'm a big guy & would like something with a bit more headroom & legroom. Consequently, I'm thinking that a used 530 or 540 might be a bit more apropos for someone my size. My primary concern is that I am not terribly skilled when it comes to maintaining cars...I drive them & take them to the dealerships (when service is needed) & that is about it. Is this something I need to be concerned with? Thank you in advance, Rick