Patent attributes
A vehicle floor lower structure includes: a floor panel configuring a floor of a vehicle and formed with a floor tunnel, that projects out toward a vehicle body upper side and extends along a vehicle body front-rear direction, the floor tunnel is disposed at a vehicle width direction center of the floor panel; a fuel tank that is disposed at a vehicle body lower side of the floor panel and that includes a main tank section disposed inside the floor tunnel and an extension tank section that is disposed inside the floor tunnel and that projects out from the main tank section toward a vehicle body front side or a vehicle body rear side; and an exhaust pipe that is routed so as to pass by inside the floor tunnel at a vehicle width direction outer side of the main tank section and the extension tank section.