Benefits of Fuel Cell?

hi, with a fuel cell ,, no fuel gauge level, have to install a vent tube, build a firewall behind rear seat and seal it , that includes package tray. no speakers allowed. without a fuel gauge, you will have to measure level with a stick. which means, you will have to open trunk to measure. I run duster with a stock tank, mid 11 sec, have no problems at all. fuel gauge shows me level, no firewall in trunk. just food for thought.