Looking at a post below I saw that some people have upgraded the maintenance on their 323i's. This is really a dumb question but my dealer said nothing about this at purchase time. What do I get if I do this, what have people paid and is the 10K miles the drop off point (I'm at 8K now). Also can I purchase this thru any dealer (Jon Shafer?) or do I have to go through the dealer I bought the car from? Thanks.