E39s are fun cars but as mentioned the maintenance will hurt. I had a very well maintained 03 E39 with low miles (under 85k when I sold it in Feb of this year) and in the last 6 months of ownerwhip I spent over $4,000 on repairs (that's 90% indy, 10% stealership). They are great cars (if a bit heavy) but once they start going downhill they will rob you blind. Right about the time the car hit 80k miles the shit hit the fan. Oil leaks, Vanos, electrical gremlins, intake manifold, water pump, and pulleys/belts all took a dump at the same time.
2008 E90 335i // Black Everything // photos
COBB tuned / QTP e-cutouts / Helix FMIC / cp-e DCI / AWE BOVs / Black M6 wheels + Toyo Proxes
(and yes, I am a girl)