I ordered M3 RWD Monday, 12/19 (midnight silver, 18" Aeros) and still do not have a VIN assigned (11am PT 12/23). Hoping for delivery by 12/31 and Fremont (and every other SA I've talked to) has assured me they're at full production but unfortunately, their system isn't able or willing to give any more info. I would hope they'd be producing the popular configs and basically all M3 RWDs at as quick a rate as possible, given the intense push to bolster Q4 sales. You'd think they could drill down into anticipated inventory b/c VINs are getting assigned when the dash is installed but I get it, lots of dependent variables, including that eventually completed car needing to pass systems & quality checks before being assigned to a buyer.
Here's to hoping we all get our Model 3's by year end!