This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each bubble’s position maps horsepower on the x-axis and torque on the y-axis, while its radius encodes highway MPG and its color distinguishes the car brand. Tooltips display the make on hover. Built with D3 v7, it uses SVG circles, d3.scaleLinear for axes and size, d3.scaleOrdinal for color, and interpolateTurbo, with data loaded from a CSV. A legend shows MPG values and brand colors.