A bubble chart displays the correlation between average horsepower, torque, and highway MPG across various car makes. Each circle’s position maps horsepower and torque, while its radius encodes highway MPG and its color distinguishes the manufacturer. A tooltip reveals the make on hover, and legends explain the size and color scales. Built with D3 v7, the visualization uses SVG, linear scales, and ordinal color mapping, with data loaded from a CSV file.