This bubble chart displays the correlation between average horsepower (x-axis), average torque (y-axis), and highway MPG (bubble size) for various car makes. Built with d3.v7, it renders SVG circles with animated hover interactions. The chart uses `d3.scaleLinear` for positioning and sizing, `d3.scaleOrdinal` with `d3.interpolateTurbo` for categorical coloring, and custom tooltips showing the make. A legend maps bubble size to MPG values and color to car brands.