This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across 31 car makes using data from a CSV file. Each circle’s position maps horsepower (x-axis) and torque (y-axis), while its radius encodes highway MPG and its color distinguishes car brands via a d3.scaleOrdinal with interpolateTurbo. The visualization includes interactive tooltips on mouseover, a size legend for MPG values, and a categorical color legend, all rendered as SVG elements with d3.v7.