This bubble chart shows the correlation between average horsepower, average torque, and highway MPG across different car makes. Each circle represents a make, positioned by its horsepower and torque values, with the bubble size scaled by highway MPG and color encoding the make. Built with D3 v7, it renders as an SVG and uses `d3.scaleLinear` for positioning and sizing, `d3.scaleOrdinal` with `interpolateTurbo` for colors, and `d3.csv` to load the data. Tooltips appear on hover, and a legend indicates the MPG mapping.