My Pantera has been getting 15 miles per gallon on the open road. I get nervous when I get below 1/4 of a tank, which means I've used about 15 or 16 gallons. That's 225 to 240 miles range, with 75 miles left before it sputters to a halt. There are some roads in the US, that pass through sleepy little towns as they meander over mountain ranges and across deserts and plains, that require more than 225 miles between major fuel stops. The sleepy little towns may have a gas station, but the hours are limited; they close early, never open in the evening, and are normally closed on Sundays too. I absolutuely love to travel & explore by motor vehicle, especially lesser traveled two lane back roads & the Pantera makes such traveling even more of an adventure. A little extra fuel capacity would be kind of cool, from my perspective.
You run into the same concerns when traveling by motorcycle by the way, where most bikes only have 3 to 5 gallon fuel tanks; only a few of the touring bikes have greater capacity, normally about 7 gallons. Nice thing about travleing in the Pantera compared to traveling on a motorcycle, when you get tired of the wind, you just roll the windows up! I admit it, I'm spoiled, please don't tell the AMA.
Your friend on the PIBB, George