This example presents an interactive scatter plot of the Auto MPG dataset, using circle marks to show the relationship between miles per gallon and horsepower. Point color encodes the country of origin, while size maps to vehicle weight. Built with the Vega-Lite API, the visualization loads data via D3’s `csv` function and renders to SVG. The code configures the chart’s dimensions and appearance through a custom config object, and tooltips are enabled via the Vega Tooltip handler.