This bubble chart visualizes correlations between average horsepower, torque, and highway MPG for 31 car makes, using bubble size to encode MPG and color to distinguish brands. It reads data from a CSV file and renders circles via D3 v7’s SVG API, with interactive tooltips triggered by mouse events. The visualization includes axis labels, a size legend for MPG, and a color category legend, all positioned within an SVG canvas using D3 scales and ordinal color mapping.