This animated bubble chart visualizes the correlation between average torque, horsepower, and highway MPG across 31 car makes. Each bubble’s position maps horsepower (x-axis) and torque (y-axis), while its radius encodes highway MPG and color distinguishes the make. Built with D3.js v7, the chart uses `d3.scaleLinear` for axes and sizing, `d3.scaleOrdinal` with `d3.interpolateTurbo` for colors, and interactive tooltips via mouseover events. Data comes from `bubblechart.csv`, rendered as SVG elements with a legend for MPG values and categorical markers.