This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle’s x-position represents horsepower, its y-position represents torque, and its size encodes highway MPG. The color of each circle distinguishes the car manufacturer. Built with the D3.js v7 framework, the visualization uses SVG rendering for the plot and animation for tooltips. It employs `d3.scaleLinear` for axes and bubble radius, `d3.scaleOrdinal` with `d3.interpolateTurbo` for color, and interactive tooltips on mouseover.