This pie chart displays 2022 US auto sales by brand, with each slice sized by year-to-date sales and a legend identifying brands and their sales in thousands. The visualization uses D3 v5 APIs including `d3.pie` for computing arc data, `d3.arc` for generating SVG paths, and `d3.scaleOrdinal` for categorical color assignment. Data is loaded from a CSV file hosted on GitHub Gist via `d3.csv`, and rendered as SVG within a 960x500 canvas with a legend positioned to the right.