Driving at 130 km/h (80 mph) is going to drop your range. Most of the energy at highway speeds is used to push air out of the way. The air resistance goes up as the square of the speed. 112 km/h (70 mph) will get you a lot closer to your rated range. The cooling mode of the air conditioning has less effect than you might think, parked in 100F (37.7C) heat with the inside temperature set to 70F (21.1C) drops my range by 8 miles (12.9 km) per hour. The heating uses resistance heat so is electrically expensive. Whereas conventional cars use waste engine heat to warm the cabin, the Tesla will use battery power to heat the cabin. I wear a sweater, use the seat heater, and keep the inside relatively cool, 15-18C (60-65F).
A lot of people suggest looking at the remaining battery power as a percentage, they say to decrease range anxiety. I like mine set to remaining distance. I don’t I’ve ever felt range anxiety. The remaining range calculation is pretty conservative and I always see It increase on trips. But then I don’t drive at 80 mph (130 km/h).
You’ll love the car. I do, and mine’s not a performance model.
I'm happy with 350km winter and 450km summer... at least on the highway. But I do think that lowering to, say, a 120 km/h average rather than 130 would be beneficial. Btw - you are super lucky to have real leather seats. Man would I like real leather... I'll look around at auto shops here to see what they can do, but then again now I have better things to worry about.