Massage chairs is probably the one thing where everyone agrees that the Tesla is missing, especially S/X
I would agree that every car is a different set of compromises, of course.
With a Tesla you get a more aggressive auto-steer approach and the forward-looking potential of the AP system and large media screen with frequent software updates. The latter two's potential is so far pretty unique, though of course also carries the risk of lack of expected progress. Supercharging and general BEV performance are clearly Tesla's strong suits. Beyond that, Teslas are pretty basic though - some is minimalism, but there is also a distinct lack of features in many areas.
Downsides to the e-tron are that software and feature updates after delivery can be expected to be fairly minimal compared to Tesla. Also, until Audi gets their Level 3 deliveries going, for current/upcoming deliveries the steering assists are more reactive safety features than steering pilots - and of course even at Level 3 Audi's approach for the coming years differs much from Tesla's.
In addition to massage seats there are at least the following feature advantages and notable differences in an e-tron, compared to a Tesla:
* HUD
* Advanced user-facing camera system:
- Rotatable 3D camera views where your car is super-imposed on 3D view of the surroundings
- Also traditional 360 degree camera views
- IR night-vision camera with object recognition (e.g. pedestrians) and display
- Side-mirror replacing, adjustable cameras in Europe
* Matrix LED lights
- Not just auto on/off, but capability to highlight road features and recognized objects (e.g. pedestrians)
- Capability to adjust beam light to light to highlight road but not blind others
* Safety differences
- LIDAR and more radars for forward collision detection
- Radar-based blindspot and cross-traffic detection towards the rear
- Active speed-limit detection (AP2 only has a database currently)
* More comfort features
- Wider range of seat adjustments (as said, with massage)
- Four zone climate control with rear-seat controls
- Fragrance (active odorization)
- Color-adjustable interior lighting
- Google Street View
- Android Auto, Apple CarPlay
- Wi-Fi hotspot, more connectivity/media options
- Kick to open trunk
- Compared to Model 3: ventilated seats, heated steering, electric trunk close
- Compared to at least Model S: soft-close door motors
* Just different: Audi has three screens/touchscreens
- Instrument cluster screen (none in Model 3, comparable to Model S/X)
- Two-screen media system (partly tactile, but smaller than Tesla's big screen)
I can't say I don't miss some of this stuff in a Tesla. Mind you, I don't regret moving into Teslas back in 2014. The EV transformation is certainly worth it and the Autopilot adventure too has been (and I expect remains) interesting, to say the least. But I did leave a lot of convenience stuff behind and I doubt I'm alone in thinking it does have some value in purchasing decisions going forward, now that/once big battery BEVs are available from a larger set of manufacturers than just one?