This area chart displays the sales of cars in India from 2009 to 2019, with a smooth curve and a shaded region beneath the line to emphasize trends over time. The visualization uses D3 v5 with SVG rendering, employing `d3.scaleTime` and `d3.scaleLinear` for axes, and `d3.line` and `d3.area` generators with `curveBasis` to create the smoothed path. Data is loaded from a remote CSV file using `d3.csv`, with axes formatted via `d3.axisBottom` and `d3.axisLeft`.