[edsouza]

I can't remember where source, but the model 3 will have sensors, unfortunately you need to pay extra for autopilot software to be enabled. Not sure if the pricing will be higher that the other models.

[sbierwagen]

The self driving sensors are optional extras on both the model S and the model X. Cost is $8,000.

[bjelkeman-again]

The sensors are not optional, they are included, but the software for autopilot and full autonomy is optional.