This bubble chart shows the correlation between average horsepower, torque, and highway MPG across 31 car makes, using D3 v7 with SVG and animation. The x-axis maps horsepower, the y-axis maps torque, and bubble size encodes highway MPG, while color distinguishes each make via a categorical scale. Interactive tooltips appear on mouseover to display the make name, and the chart includes legends for bubble size and color. Data is loaded from a CSV file via `d3.csv`, with scales implemented using `d3.scaleLinear` and `d3.scaleOrdinal`.