This pie chart displays 2022 U.S. auto sales by brand, with each slice sized by year-to-date sales and a corresponding legend showing brand names and sales totals in thousands. The visualization uses d3.pie and d3.arc to generate SVG paths, with d3.scaleOrdinal assigning colors to slices. Data loads asynchronously via d3.csv from a GitHub gist, and the code formats sales values using d3.format. A legend is built manually with SVG rectangles and text elements, while the chart itself is centered within a 960x500 viewport.