This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various vehicle makes. Each circle’s position on the x- and y-axes corresponds to its horsepower and torque values, while its radius encodes highway MPG, and its color distinguishes the make. Built with D3.js (v7), the chart uses `d3.scaleLinear` for axes and size, `d3.scaleOrdinal` with `interpolateTurbo` for color, and SVG circles with an interactive tooltip that displays the make on hover. Data comes from `bubblechart.csv`.