How many gears available in Tesla Model 3?

@ Udit | You can summon the car in parking lot etc without driver using your cell phone. In US, the car can drive on highways and self navigate but driver needs to be in the seat as it ask periodically to touch steering wheel or some other button (I guess it legal requirement here). Later, in the year, its expected to provide full self driving capability even on small roads. They update software almost every week (on air) and usually it brings in some new features. Please note that model 3 comes in stripped down version costing$ 35000 to upscale model almost $75000. Cheaper trims are not going to have self driving capability, unless bought as add on