My truck can't do 260 miles on a tank. Luckily, 260 mile journeys are exceedingly rare, rarer in both a truck and a $100k sports car than in anything else. Both of those have tradeoffs on long journeys; the truck costs $70 to fill and the car takes a good amount of time to recharge. Both are enough deterrents of long journeys to keep you living within your means.

They intentionally chose a route at the maximum possible millage. Most people would be more conservative.