This bubble chart shows the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position encodes horsepower on the x-axis and torque on the y-axis, while its radius and color represent highway MPG and make, respectively. Built with D3 v7, the chart renders as SVG with animated tooltips on mouseover. A legend maps circle sizes to MPG values and includes color-coded dots for each make. Data comes from the provided CSV file, processed using d3.csv and scales like d3.scaleLinear and d3.scaleOrdinal.