This bubble chart visualizes the correlation between average horsepower, torque, and highway MPG across different car makes. Each circle’s position encodes horsepower and torque on the x and y axes, while its radius scales with highway MPG via d3.scaleLinear. Color distinguishes makes using d3.scaleOrdinal with the interpolateTurbo color scheme. Interactive tooltips display the make on hover. The visualization includes size and color legends rendered in SVG, with data loaded from a CSV file using d3.csv.