This example uses the Vega-Lite API to render an interactive scatter plot of the Auto MPG dataset from the UCI Machine Learning Repository. It visualizes vehicle horsepower against miles per gallon, with circle size encoding weight and color representing country of origin via a quantitative size encoding and a nominal color field. The visualization is built using the `vega-lite-api` library, which programmatically constructs the plot through chained method calls like `vl.x()`, `vl.y()`, and `vl.color()`, with data loaded via d3’s `csv` function. The code registers Vega-Lite and Vega-Tooltip for rendering and interactive tooltips, while a custom configuration adjusts axis styling for readability.