This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position encodes horsepower (x-axis) and torque (y-axis), while bubble size reflects highway MPG and color distinguishes make. Built with D3 v7, the SVG renders animated hover interactions via tooltip events. The legend maps MPG values to circle radii, and a color scale applies d3.interpolateTurbo to the categorical makes.