This area chart visualizes car sales in India from 2009 to 2019, using a pink-filled area beneath a black line to show sales trends over time. The chart is rendered as an SVG using D3 v5, with `scaleTime` and `scaleLinear` for axes, and `area` and `line` generators with `curveBasis` for smooth curves. Sales data is loaded from a CSV file, parsed with `d3.timeParse`, and displayed with custom axis labels and gridlines.