This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes. Each bubble's position maps horsepower on the x-axis and torque on the y-axis, while its size and color encode highway MPG and make, respectively. Built with D3 v7, the visualization uses `d3.scaleLinear`, `d3.scaleOrdinal`, and `d3.interpolateTurbo` to map data attributes. It reads from a CSV file and includes an animated tooltip on hover, plus a legend for size and color scales.