This scatter plot visualizes the relationship between vehicle weight and horsepower, colored by origin and sized by weight, based on the auto-mpg dataset loaded via `d3.csv`. The visualization uses vega-lite-api to construct the specification, with vega-lite and vega handling rendering to SVG. Interactive tooltips display car names using vega-tooltip’s `Handler`, while the `config.js` customizes axis and label styling. The plot fills the window with a fit autosize, and the code registers the tooltip handler during initialization.