I tend to wonder if those tanks are removable for the difference between short and long range trips? Kinda like adding a larger/second fuel cell for when you plan on driving further than your normal range would allow, and don't want to or can't buy fuel where you're going.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
|