The phrase "spacious interior" refers to a large and roomy interior space within a building or vehicle. It suggests that there is ample amount of space available for people to move around, sit, stand, or store items comfortably. The term can be used to describe the sizeable dimensions of a living area in a house or apartment, the generous legroom and headspace in a car or airplane, or even the expansive open floor plan of an office building or warehouse. In essence, "spacious interior" implies that there is plenty of room to accommodate people's needs for comfort and functionality within the given space.