Thanks to all for the comments - much appreciated. You've given me a strong argument for "standing pat". I'm still working on it.
By the way I'm in Raleigh, NC and the local store has SEVERAL Stealth Performance cars. If you're interested in one I suggest you contact them and see what you can arrange. As of today they had a few White, several Blue and Gray. Most had the 19" wheels. I was quoted just over $55K out the door for a White Stealth, including 19" wheels and all NC taxes/fees (3% sales tax, dealer prep/delivery, NC registration). Compared to the M3 AWD the upcharge for the Stealth is very reasonable - $2K with 18" wheels (not sure if they have any left), about $3K with the 19" wheels (I have them on the LR and think they are well worth the extra cost - Edmunds did a review and found that they add a LOT of extra performance - a great match for the higher power electric motors of the Stealth).
These cars DON'T show up on an inventory search. CALL for more info:
Raleigh Tesla
8831 Westgate Park Drive Suite 102 Raleigh, NC 27617
Store
(919) 784-0493
Store Hours
Monday - Saturday 10:00am - 7:00pm
Sunday 12:00pm - 6:00pm
Feel free to PM me. Happy to help if I can.