A pie chart shows the distribution of cars by cylinder count, sourced from the Auto MPG dataset. Each slice is labeled directly with its category and percentage, while a legend on the right lists raw counts. The chart uses D3 v7 modules `csv`, `rollup`, `pie`, `arc`, and `scaleOrdinal` with `schemeTableau10`, rendering slices and labels as SVG elements within an 880 by 520 pixel viewport.