This bubble chart visualizes the relationship between average horsepower and torque for various car makes, with bubble size encoding highway MPG and color distinguishing the vehicle makes. The visualization employs D3.js v7 to render SVG elements, using linear scales for the x and y axes. Animated tooltips appear on mouseover, displaying the make name, while a legend communicates the MPG scale. The data is loaded from a CSV file, and the D3 `scaleLinear` and `scaleOrdinal` APIs handle the mappings for size and color, respectively.