Originally, all you could get was the Premium (PUP). There are 10 drivers in the front:
Three tweeters: left at the corner of the door (10), center in the dash up at the windshield (8), right at the corner of the door (10).
Three mid-range: left, center, and right all in the dash up at the windshield (7)
Two big woofers: left low on the door, right low on the door (6)
Two height/ambient: left and right high on the front pillars, behind a plastic grille (9)
For completeness, there are four in the back:
Two mid-range in the doors, two mid-range on the back deck (7)
And one in the trunk:
One subwoofer. (1)
View attachment 458220
https://epc.teslamotors.com/#/systemGroups/47361