This interactive bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position encodes horsepower and torque, while its radius scales with highway MPG and its color distinguishes the manufacturer. Built with D3 v7, the SVG rendering includes axis labels, a bubble-size legend, and a color legend. Hovering over a bubble triggers a tooltip that displays the car make, implemented with mouseover, mousemove, and mouseleave event handlers. Data comes from the provided CSV file.