3,200 miles at 50 mph is 64 hours...with windows rolled up and no AC (maybe not even the ventilation fan). No thanks.
We just did 1,100 miles through the Canadian Rockies in my 2014 Ford Expedition with the Triton 5.4L V8 and got 18.2 mpg average. I take it real easy, anticipate stops up ahead, slow acceleration and drive like there’s an egg between my boot and the gas pedal. I was very happy to get that mileage in a ten year old, big, comfortable car with 103k on the clock.
With my Ram 1500 I average 18.5 miles per gallon which is about half stop and go and the other half open road. On the interstate I get 24 mpg at 70 mph. That Prius beats the hell out of this. That Prius can not haul several thousands pounds in a trailer behind it.
Both are fine vehicles for their designed use. My truck is a work truck thus 395 horses V8. The Prius is just for moving people.
2021 Dodge Ram EcoDiesel, Denver to Panama City, Florida, multiple trips, 27.5 MPG.
2021 Jeep Wrangler Sahara EcoDiesel, Key Largo to Key West and back, 35.5 MPG.
I am a huge fan of making diesels for many reasons.