This dashboard visualizes BMW sales data through an interactive stacked bar chart, showing sales volume by model and year. It includes summary cards with key metrics, insights highlighting top-selling models, and secondary charts for price trends and regional comparisons. Built with D3.js v7 and rendered as SVG, the visualization features region filtering via dropdown, hover tooltips for detailed information, and clickable legend items to highlight specific models. Data is loaded from a CSV file containing model, region, price, and sales volume fields.