I’m relatively new here myself, but is the dealer padding the monthly? The selling price and MF look pretty good, but $399 (even incl tax) seems kind of high given the other numbers.
What does the LH calculator give you as the monthly when you plug in the numbers?
Mine has almost the same MSRP and I’m paying $340 for 24/10k with only DMV and first month paid at signing ($500). Incentives are better now, as is the MF after MSDs (MSDs weren’t allowed back in December when I got mine).
If you are doing max MSD, they are marking up the MF (should be .00142 after 7 MSDs) and hard to gauge the discount since incentives aren’t broken out. Also lease cash and other factory incentives are typically taxed, so important to know. They can certainly take the OL if they want, at least $500 since that is funded by BMW, and east coast dealers have taken west coast codes in my experience.
The RV in your calculator is wrong as it would be 66% minus the mileage penalty of 25 per mile over 500, or just add the penalty to the sale price.
Also, with 3 series it typically makes sense to drop the acquisition fee and bump the MF .0005 which BMW allows.
Overall, a so-so deal from what I can tell. You need the deal sheet from them to understand where it can be improved.