This example shows a pie chart of car sales, with each slice representing a car model and its sales volume in thousands. The chart displays model labels directly on each slice and includes a color-coded legend on the right for identification. It loads a CSV file from a GitHub Gist and processes the data using D3 v6, specifically applying the `d3.pie` and `d3.arc` APIs to generate the pie geometry. The visualization renders as an SVG, using `d3.scaleOrdinal` with `d3.schemeCategory10` for slice colors.