This interactive bubble chart visualizes the correlation between average horsepower, torque, and highway MPG for various car makes using data from a CSV file. Each circle’s x-position and y-position map to horsepower and torque respectively, while its radius and color encode highway MPG and car brand, using `d3.scaleLinear` and `d3.scaleOrdinal`. The visualization includes hover tooltips, axis labels, a legend for bubble sizes and colors, and is rendered with SVG elements using D3 v7’s data join and transition methods.