This interactive scatter plot visualizes automobile performance data from the UCI Auto MPG dataset, showing miles per gallon against horsepower across different origins. The visualization uses square marks with color encoding for origin and size for vehicle weight, while tooltips display model names. Built with the Vega-Lite API, it registers Vega, Vega-Lite, and d3.csv for data loading, then renders an SVG view with custom axis and label styling. The plot automatically fits the browser window and uses Vega Tooltip for interactive hover details.