This bubble chart visualizes the correlation between average torque, average horsepower, and highway MPG across vehicle makes. Each circle represents a car brand, with its x-position mapped to horsepower, y-position mapped to torque, and the circle’s radius encoding highway MPG. A legend shows the mileage scale, while hover tooltips reveal the make. The chart uses D3 v7 with SVG elements, `scaleLinear`, and `scaleOrdinal` for color encoding. Data comes from a CSV file, and the visualization includes animated transitions during tooltip display.