This bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each bubble’s position encodes the first two numeric variables, its radius scales with highway MPG, and its color maps to the manufacturer’s make. The visualization, built with D3 v7, includes axis labels, a size legend for MPG, and interactive tooltips that reveal the car make on hover. Data is loaded from a CSV file, and the chart uses SVG rendering with animated transitions for the tooltip’s opacity and position.