This pie chart shows the distribution of cars by fuel type in a dataset loaded from a CSV file. The visualization displays three fuel categories as colored slices with labels, while a legend on the right lists each fuel type along with its corresponding car count. The chart uses D3.js v7 APIs including `d3.csv` for data loading, `d3.rollup` for aggregation, `d3.pie` for pie geometry, and `d3.arc` for arc paths. The SVG renderer draws the chart, and the code includes fake axis labels for fuel type and number of cars.