This bubble chart shows the correlation between average horsepower, torque, and highway MPG for various car makes. Each circle’s position encodes horsepower and torque on the x- and y-axes, while its radius and color represent highway MPG and manufacturer, respectively. Rendered as an SVG with D3 v7, the visualization uses `d3.scaleLinear`, `d3.scaleOrdinal`, and `d3.interpolateTurbo` to map data. Interactive tooltips appear on hover, and a legend explains the bubble sizing. Data is loaded from a local CSV file.