This bubble chart visualizes the relationship between average horsepower, torque, and highway MPG for various car makes. Each circle’s position is determined by horsepower (x-axis) and torque (y-axis), while its radius encodes highway MPG, and color distinguishes car brands. The visualization uses D3.js (v7) with SVG rendering, employing `d3.scaleLinear` for axes and bubble size, `d3.scaleOrdinal` for color assignment, and interactive tooltips that display exact values on mouseover. Data is loaded from a CSV file, with circles animated via D3’s `.join` operation.