This bubble chart uses D3 v7 (SVG and animation) to visualize the correlation between average horsepower, torque, and highway MPG for 32 car makes. Each circle’s position encodes horsepower and torque, while its radius scales with highway MPG, and color distinguishes car brands, as shown in the legend. The `d3.scaleLinear` and `d3.scaleOrdinal` functions map data to sizes and colors, with tooltips revealing the car make on hover.