I just drove my 22 GT with the 21” wheel package on a 278 mile trip one way from Suwanee GA to Savannah GA. My 100% SOC distance was 462 miles. My route planner was showing I would have 140 miles of range left at my destination. If you add the distance of my location with my remaining miles at my destination, this should give me a rough estimate of the route planner’s range at 100% SOC which was 418 miles (278+140=418). This 418 miles of range should represent normal driving conditions. The route I took consisted of more than 170 miles of backroads (40 miles of which was stop and go traffic) and 92 miles of interstate. On the backroads I never exceeded 69mph but mainly drove 64mph. On the interstate I drove 75mph. By the end of the trip, my route planner was showing that I would have 110 miles of range left at my destination losing an additional 30 miles. I ended up with a total range of 388 miles which is 84% of my original displayed range.
I was expecting more than I achieved, especially at the speeds I was driving.