This bubble chart visualizes average horsepower versus average torque for various car brands, with bubble size encoding average highway MPG and color distinguishing each make. A black tooltip appears on hover, displaying the car brand. The visualization is built with D3 v7, using SVG circles, linear scales for axes, a power scale for bubble radius, and an ordinal color scale. Data is loaded from a CSV file, and the chart includes legends for bubble size and color categories.