This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes, with each circle’s position encoding horsepower on the x-axis and torque on the y-axis, while radius and color represent MPG and make, respectively. Using d3.v7, the chart loads data from a CSV, renders SVG circles with tooltips on hover, and includes a legend for circle size and color. Interactive features rely on event handlers for mouseover, mousemove, and mouseleave to display tooltips.