This visualization displays automobile fuel efficiency data from the UCI Auto MPG dataset, plotting cylinders against weight with color-coded origins and tooltips showing vehicle names. The code uses the Vega-Lite API with D3.js v7 for data loading via `csv()`, and renders an interactive SVG chart through Vega and Vega-Lite. Custom styling in `config.js` adjusts axis fonts and colors for readability. The visualization responds to window dimensions and includes a Vega tooltip handler, producing a full-screen scatter plot with hover interactions.