Well, I may have more money than brains, but I am going to get a 90D (AWD) and sell my December 2014 Model S. 17,250 miles on it. Moving to Arizona snow country has a lot to do with it, even though getting snow tires on the 85 would help a lot by itself. The AWD option was became available days after I ordered the 85 back in September 2014, but I was new to Tesla, and worried that AWD cars would have mechanical problems, etc. I could have changed the order right then, but I chickened out. Bad decision, and I have regretted it ever since. Mid-March delivery, and the $1200 referral credit exactly offsets the $1200 destination and doc fee charge.