I regularly use Range when "commuting". I have had the top speed drop to 55 MPH during a drive using Innodrive. It appeared to happen when my range remaining dropped below 250 miles. Later in the trip the top speed returned to 70 MPH.
It is crude but how about using the clicker that came with your garage door? I doubt it is a software only update as you would need the Homelink transmitter installed in the car.
I have a rhythmic humming from front motor when in Range Mode. It is most noticeable between 38 and 42 MPH. My dealer says it is normal for 4 S. Their demo Turbo S doesn't make the noise but has a different inverter. My car has stock 19 wheels with all season tires.
RWD was the model I originally wanted but it isn't for sale yet in the US. My worry with the de-contented model was what would be lost compared to current AWD models. I was also concerned the US EV federal tax credit might be cancelled although that is no longer a worry.
I have experienced Innodrive slowing the car on the interstate as the car approaches a hill and there are no car ahead in the lane within radar range. The car may be thinking it is approaching a barrier or something. I just hope the brake lights are on during this episode.
I believe the car was working as designed for a brake booster failure. When the booster fails the car uses the ABS to stop the car which is why you felt the pulsing. Were they able to fix it in short order?
I pay slightly over $ 0.10 per KWH here in FL. I also have 7KW of solar panels but my air conditioner use, cloudy weather and now the Taycan result in summer monthly bills of $40 - 50.
The other wrinkle with Taycan wheels from the factory is that the wheel is supposedly balanced on the car. So if you remove them they should be marked some how for re-installation.
I am running half load pressures in my 4 S with 19" wheels. In my Cayenne if I run full load tire pressures with light loads I would see slightly increased center tire wear. YMMV