This bubble chart visualizes the relationship between average horsepower, torque, and highway MPG for various car makes, with bubble position on the x- and y-axes representing horsepower and torque, and bubble size scaled by highway MPG. The chart includes interactive tooltips that display the car make upon hover. Implemented with D3 v7 (`d3.select`, `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.axisBottom`, `d3.axisLeft`), the SVG rendering uses color-coded bubbles and a custom legend for MPG values, with data loaded from a CSV file.