This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes. Each bubble's position corresponds to its horsepower (x-axis) and torque (y-axis), while its size scales with highway MPG. Bubbles are color-coded by make, and the chart includes a legend for MPG values and car makes. Built with D3 v7, it renders as SVG, uses `d3.scaleLinear` for axes and sizing, and features interactive tooltips displaying the make on mouseover.