This bubble chart shows the relationship between horsepower, torque, and highway MPG for various car makes. Each circle’s x-position represents horsepower, the y-position represents torque, and the circle radius encodes torque magnitude. The chart uses d3.csv to load data, d3.scaleLinear for axes, d3.scaleSqrt for bubble sizing, and d3.scaleOrdinal with d3.schemeCategory10 for color encoding. SVG rendering includes interactive hover effects that change circle fills, along with legends for car makes and highway MPG.