Audi A7 : Well built, quiet cabin, spacious back seat, luxurious interior, smooth ride.
Tesla Model 3 : Loud cabin at highway speed, very low back seat so knees are in the air, minimalist interior, bumpy suspension.
My 2018 Model 3 was delivered perfectly with great build quality, and my service experiences for maintenance have been great (my driveway). It's the best car I've owned because of the massive acceleration, battery and drivetrain tech, software, nav screen, super comfy front seats, 4yr warranty. However, the bumpy suspension and loud cabin at highway speed are bad, I can't quite recommend this car to people for those reasons and I'm embarrassed when driving older family members around. I have the stock 18-inch wheels.
You should rent the car overnight before buying it, lmaybe from Turo. There is no return policy at all once you take delivery.
You will likely be much happier in the Model S with the quieter cabin and air suspension and longer range. But the back seat legroom is average and the view out the front windshield is kinda small. I don't think any Tesla has back seats as comfortable as a Toyota Camry, including the X.