For additional data, when we go visit my wife's family that's a 2,400 mile trip (3,800km) that we usually do in 3 long-ish days (8am-10pm) if I'm with my family

For additional data, when we go visit my wife's family that's a 2,400 mile trip (3,800km) that we usually do in 3 long-ish days (8am-10pm) if I'm with my family, or around 40 hours if I'm going solo. This is in a 2016 Model S 75D (smaller battery).