This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes using data from bubblechart.csv. Each circle’s position encodes horsepower on the x-axis and torque on the y-axis, while its radius represents highway MPG and its color distinguishes the make. Built with D3.js v7, the SVG rendering includes interactive tooltips on mouseover using D3’s event handling, plus legends for both bubble size and color categories.