This example demonstrates a scatter plot of the Auto MPG dataset from the UCI Machine Learning Repository, visualizing the relationship between fuel efficiency (miles per gallon) and horsepower. Points are colored by region of origin, sized by vehicle weight, and include tooltips showing model names. The visualization is built using the Vega-Lite API, which programmatically constructs a Vega-Lite specification, then renders it with Vega 5 and D3 v5 for SVG output. Custom configuration and a Vega Tooltip handler enhance readability, while the chart automatically fits the viewport dimensions.