This donut chart visualizes the sales figures of various car companies from a penguins dataset, where each segment represents a company's car sales. The chart uses D3 v5’s `pie` layout, `arc` for path generation, and `scaleOrdinal` for color assignment. The SVG renders the donut with labels and a legend displaying each company name and its corresponding sales value. Data is fetched from a raw CSV URL using `d3.csv`.