This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across different car makes. Each circle’s position encodes horsepower and torque, while its radius represents highway MPG and its color distinguishes the manufacturer. The visualization uses d3.csv to load data, d3.scaleLinear for axes and sizing, and d3.scaleOrdinal with d3.interpolateTurbo for color mapping. Interactive tooltips appear on mouseover, and a legend explains both bubble size and color categories. The chart is rendered in SVG with hover animations and opacity changes defined in CSS.