This interactive family tree visualizes a hierarchical dataset of car types, from the root “Car” down to specific models like “Toyota Camry” and “Jeep Wrangler.” Rendered with D3 v3 and SVG, nodes are color-coded by type and displayed as rectangles with text labels, while links include directional arrows. The layout recalculates on load and supports zooming and dragging via `d3.behavior.zoom`, with click interactions to toggle node collapse and expand. Data comes from a JSON file containing nested `children` objects, and animations are applied during updates using D3’s `transition` methods.