This example shows 2022 US auto sales by brand as a pie chart, with each slice colored and accompanied by a legend displaying brand names, percentage of total sales, and sales volume in thousands. The chart is rendered in SVG using D3 v5, with data loaded from a CSV file via `d3.csv`. Layout is computed with `d3.pie` and `d3.arc`, while colors are mapped using `d3.scaleOrdinal`. Percentage values are formatted with `d3.format`.