This bubble chart visualizes correlations among engine power, torque, and fuel efficiency for 17 automaker brands using SVG circles. The x-axis maps average horsepower, the y-axis maps average torque, while bubble size encodes fuel efficiency and color distinguishes brand. Interactive tooltips display brand names on hover. The visualization uses D3 v7 scales (linear for axes and size, ordinal for color with interpolateTurbo), axis generators, and event listeners for tooltip positioning.