Abstract: A vehicle assembly line comprising, laid out in the order mentioned, a wire leading/transfer trimming zone (20) where components for wire leading/transfer trimming are sequentially assembled to a paint-finished vehicle body (11) for inspection and, if needed, repairing, an interior zone (30) where interior components are sequentially assembled for inspection and, if needed, repairing, an under-floor trimming zone (40) where under-floor dress-up components are sequentially assembled for inspection and, if needed, repairing, an exterior zone (50) where exterior components are sequentially assembled for inspection and, if needed, repairing, and a combined guarantee zone (60) where components not repaired in zones (20) to (50) are inspected and repaired, wherein inspection and repair are conducted in inspection sections and repair sections individually attached to individual functional zones.