This bubble chart shows the correlation between average horsepower, torque, and highway MPG for different car makes, with bubble size encoding MPG and color distinguishing each brand. Built with D3.js v7, the visualization uses SVG circles, a color scale based on `d3.interpolateTurbo`, and animated tooltips that display the car make on hover. A legend explains the MPG size mapping. Data is loaded from a CSV file (`bubblechart.csv`).