To achieve similar driving range and performance as the Model S/X has, I do believe that the Model ≡ will require less battery capacity. Just as Premium Sedans with ICEs have gas tanks 33% larger than "Standard/Sport Sedans." (Based on that math, we can expect to see a Model ≡ 52.5 and a Model ≡ 67.5.) Consider the lower weight of a smaller car, the suggested reduction of the drag-coefficient, and a smaller surface area to start with... we can expect a slight reduction of those numbers yet.
FWD or RWD, I don't know... but you can bet that the base model will be a Single Motor design, with an AWD upgrade option.
Overall range and performance probably will be very similar to the Model S, with the S having just the slightest advantages. Tesla doesn't want this car to pose the question, "Why not get a Model ≡?" They want this car to pose the question, "Why would I get anything but a Model ≡?"
Extrapolated configurations should be...
-Model ≡ 50 (230 mile range) (5.8 seconds 0-60 mph) $35,000
-Model ≡ 50D (240 mile range) (5.5 seconds 0-60 mph) $40,000
-Model ≡ 65D (288 mile range) (4.5 seconds 0-60 mph) $53,000
-Model ≡ P65D (270 mile range) (3.4 [3.1 "Ludicrous-Equivelant" Mode] seconds 0-60 mph) $73,000
Upgrade Options:
-Paint upgrades start at: $750
-Extended Glass Roof Options: $1,000
-Wheel and Tire Packages will start at: $1,000
-Leather Interior Package: $1,500
-Autopilot: $2,500
-Premium Interior & Lighting: $2,500
-Smart Air Suspension (with basic presets): $1,500
-Improved Sound System: $1,500
-Sub-zero Weather Package $1,500
-Dual Chargers: $2,000
Standard Features:
-5-Star NHTSA in all categories
-Supercharger Access Standard
-13" Touchscreen Center Console (15" touchscreen for $750)
-Digital Driver Information Center scaled down just a bit
-Compatibility with all common roof-rack systems
-Front Trunk
-Rear Trunk
-Parking sensors and blind spot warning
-Up to four LATCH child seat attachments
-8 year, infinite mile battery and drive unit warranty-4 year, 50,000 mile limited warranty
Don't Expect:
-Falcon Wing Doors
-Summon
-Big Sky Panoramic Windshield
-Bio-Weapon Defense Mode
-Seating for more than 5
-14-way power adjustable, heated front seats with memory
I cloud go on all day, but lets save your sanity, haha. (Sorry, I'm just really excited... probably too excited considering this is still 15-21 months away.)