This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes. Each circle’s position encodes horsepower and torque on the x and y axes, while its radius scales with highway MPG; color distinguishes car makes. The chart uses d3.csv to load data and d3.scaleLinear for positioning and sizing, with d3.scaleOrdinal and d3.interpolateTurbo for color mapping. Interactive tooltips appear on mouseover, and a legend displays circle sizes and color categories, all rendered as SVG elements from the provided CSV.