This animated SVG bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for 31 car makes. Each circle’s position maps horsepower on the x-axis and torque on the y-axis, while its radius encodes highway MPG and color distinguishes the make. Hovering reveals a tooltip with the make name. Built with D3.js v7, the chart uses `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color, and includes a legend for MPG values and makes. Data comes from the included CSV file.