" I thought the Taycan did well at highway speeds and thought I'd observe a range increase from my usual short city drives "
Taycan does very well at highway speeds compared to other EV, but range at highway speeds is lower than city drives.
I get a drop of 10-20% of range when doing highway...
You have to nav a location far way so the PCM has to program charging stops.
Then you cancel the trip.
Will stop the " Charging Target set to 255% "-bug that limited you at 40% (40%*255%=100%).
This can happen when you ignore a stop for recharge that PCM had planned on your trip.
Congrats with your ST
When it's getting cold, you use energy to heat seat & cabin, but your taycan is also heating the batterie the first miles you are driving. That drops range if you do a lot of short trips with long stops that cool down your batterie again.
You can get 225 miles range for...
I bought a 2021 4CT 3 weeks ago (77.000 km). I don't know how first owner used his car.
I did less than 1000km and the third time i charged at home (21 kW) : blew up when charging , tripped the circuit breaker for the whole house.
22KW charger should be replaced within 10 days ....