This interactive D3.js v7 bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes from a CSV file. Each circle’s position maps horsepower and torque values, while its radius encodes MPG and its color distinguishes the manufacturer. The visualization includes a tooltip that displays the make on mouseover, plus dual legends for MPG scaling and color-coded makes. The SVG rendering uses d3.scaleLinear for axes and bubble size, d3.scaleOrdinal for categorical coloring, and d3.interpolateTurbo for the color palette.