Honestly man, and I hate to say this, but here's the biggest issue. The ZHP is getting old. Its probably nothing against your car or your ad, but its just the market. The enthusiasts that want an E46 are buying M3s (look at the recent trend on here lately!). Otherwise, people are moving into newer platforms.
I had roughly the same issue with my car. Granted, I had my car priced higher than 99% of other ZHPs, but still, it was about as clean and rare a ZHP you can find. I will say, your car has the AT thing against it, but still, if its priced right, it should sell.
As for Craigslist, don't plan on getting ANY good response from it. Use it simply as a tool to get visibility. Your best bet is to blow up the forums, post the car on EVERY BMW forum there is. Also, if you are a CCA member, post it there. I got the most and best response from the CCA classifieds...
Either way, good luck.
2011 E90 Lemans Blue/Bamboo Beige M3- Harrop Supercharged IG: lmb_zcp
2013 F25 Alpine White/Chestnut X3 35i- Family Hauler
2006 R53 British Racing Green/Panther Black Mini Cooper S FOR SALE! DM for details!
Past: 2010 X5M, 2014 328d, 2003 330i ZHP, 2004 330i ZHP, 2012 X3 35i
WTB!! 2009-2012 E91 328i Touring Contact me with info!