Musk answered a lot of questions over Twitter last weekend. Some highlights:
The interior design shown in the prototypes was not at all finalized. Part 2 of the Model 3 reveal will answer everyone's questions about the touchscreen and driver controls.
Apparently the steering wheel will integrate lots of features yet to be seen (the demo cars just had placeholder wheels). In Musk's words, the final steering configuration will be "like a spaceship".
The front end design is still in flux, and Musk is open to suggestions.
The drag coefficient is not finalized, but targeted for .21.
The rear trunk opening could be made larger in the final version.
The rear seats do fold down.
AWD will definitely be an option (this was already stated, but 100% confirmed).
Air suspension will be an option, just like on the S and X.
All pre-orders will get some Tesla swag, people that waited in lines will get something extra.
There are quite a few features yet to be shown off.
I really like the front. It needs to stand out from a "normal" car.
To me it looks futuristic the way it is now. I'd be pretty disappointed if they added a non-functioning grill or some painted section to make it look like one.
I reserved one on Tuesday... I figure I'll probably have 2 years to think about it. I would definitely get the dual motor setup, just the thought of instantaneous torque at any RPM, sounds really nice. I've always been big into electric RC cars over gas, so I figured I would just go for it on a bigger scale.... However if Subaru gets around to making hatchback WRX's before then, I'll probably cancel my reservation and get my money back.
I as well preordered one.. Last night. I've been debating for a while. Next year I was purchasing a jeep, to add to our collection. However, this will replace it. We plan on staying in/around a city so it's a better option anyway, verses a lifted Jeep Wrangler (I'll get one still one day....). And j can always cancel it.
The newer the release, the more modern and futuristic the design would be which I have observed so far for this automaker brand. This has been a positive outlook for the manufacturer as consumers are increasingly concerned about both performance and physicality of the car of their choice.