This pie chart visualizes the distribution of horsepower across different car makes, with each slice colored by a categorical color scale. The data is loaded from a remote CSV file using `d3.csv`, and numerical values for horsepower, torque, and highway MPG are parsed into numbers. The chart is rendered as SVG using `d3.pie` and `d3.arc` to compute and draw the slices, while a legend built with `d3.scaleOrdinal` and `d3.schemeCategory10` identifies each make. The visualization demonstrates basic D3 v6 data binding and SVG rendering techniques.