Those images are renderings showing the 20" wheel diameter on the Model 3. Yes it is the factory width and offset by design, because these are meant to be direct replacements for the factory wheels. In the past we have seen buyers form into 3 different categories for wheel desires. OEM, dual purpose, and dedicated track (or mostly track), and wheel sales follow that trend.
Sounds like you might be best suited for the 19x9.5" setup we have by, or perhaps one of the future sizes/designs we'll have in 20" for these cars. Remember this is just round 1, plenty more to come