Living on the Taycan Forums for a few weeks now and there is some fuss about electronic issues here and there as well as a common heater-failure issue that seems to have been sorted with a new supplier in the '25 models. Some issues with the high-voltage computers flaking-out is also pretty common. I think the Taycan is potentially a bit more "risky" on the reliability scale with some gremlins not quite sorted out. I'm really impressed with how Lucid presented a very good product from the get-go and a lot of user issues are sorted with OTA updates and added impressive features.
Taycan has more ground-clearance, surprisingly, and the car is about the same dimensions as the Air, but the all-wheel "rear-axle" steering is a real treat, making the car seem a lot crisper. I have that feature on my old-time-plush-design CT6 and the boat of a limo turns-in as if it feels like a 1990's Civic somehow, even better than my C6 Grand Sport for parking-lot maneuverability. I bet the Acura TSX-SH also feels nimble because of this added complexity despite the size.
Trying to decide between the two, a Lucid GT or Taycan GTS (used). I'm still a "working Joe" and can't afford to have a backup car and need something a little more reliable. I think the Air beats-out the Taycan by some notable margin. Looking, perhaps at an Air GT '24 with the heat-pump feature as I'm in a cold-ish climate. A little leary of a Dream-P because it came out so early and there's some build-quality early-model bugaboos sometimes, though maybe those got sorted-out by the original owner.. depends.. Glass-roof is almost a 100% no-go for me though. I know there's a mesh-solution that might help.