This interactive bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle represents a vehicle make, positioned by its horsepower and torque values, with the circle size encoding highway MPG and color distinguishing makes. The chart uses D3.js v7 with SVG for rendering and includes a tooltip that displays the make on mouseover, plus legends for bubble size and color categories. Data is loaded from a CSV file, and D3 scales and axes are used to map the quantitative fields.