Yes, it is absolutely possible to road trip through Yellowstone National Park in a Tesla Model S! In fact, because the speed limits inside the park are low (usually 45 mph or less) and you spend a lot of time coasting or crawling through traffic jams to look at wildlife, your Model Y will actually get incredibly high energy efficiency. However, you can't just wing it. Since Yellowstone is massive (larger than Rhode Island and Delaware combined) and cell service is practically nonexistent inside the park, you need to know exactly where the chargers are before you drive past the entrance gates. The Golden Rule: Use the "Gateway" Superchargers The most important strategy is to charge to 100% just before entering the park at one of the towns surrounding it. The main Yellowstone loop is about 142 miles long. If you enter with a full battery, your Model S has more than enough range to drive the loop, spend hours in "bison traffic jams" with the AC running, ...