Our Road To WTAC 2025 Part 3: Not As Easy As Expected. 

Its not a fuel tank....its a water tank....its being used to spray water mist onto the intercooler during hot laps for better performance

Unless you are referring to the GVF having the Fuelcell installed behind the driver in the passenger seat....the Fuelcell is a safety type FIA appro ed fuelcell which is stored inside an aluminium crash case which is stored inside a cash frame welded to the chassie and between the driver and the fuel cell there will be a seperation referred to as a firewall....so its as safe as it can be made and better protected from fires or impacts than the original one under that car.