This bubble chart displays the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle's x-axis position represents horsepower, the y-axis represents torque, and its size encodes highway MPG. The chart uses D3.js (v7) with SVG rendering, implementing a tooltip on mouseover and a legend. Data is loaded from a CSV file, with bubble size scaled using `d3.scaleLinear` and colors assigned via `d3.scaleOrdinal` with `d3.interpolateTurbo`.