This bubble chart displays the correlation between average horsepower, torque, and highway MPG for various car makes. The visualization uses D3.js v7 with SVG and animation, rendering circles whose x-position, y-position, and radius map to horsepower, torque, and MPG respectively. A color scale distinguishes makes, while the legend shows MPG values. Mouseover tooltips (custom HTML) reveal specific make names. The dataset comes from `bubblechart.csv`, and the code applies `d3.scaleLinear` for axes and bubble sizing, `d3.interpolateTurbo` for coloring, and `d3.scaleOrdinal` for legend colors.