This visualization displays a scatter plot of the Auto MPG dataset from the UCI Machine Learning Repository, mapping miles per gallon against horsepower while encoding vehicle origin by color and weight by point size. Built using the Vega-Lite API, it registers handlers through `vega`, `vega-lite`, and `vega-tooltip` to render interactive SVG graphics with hover tooltips. The code loads CSV data with `d3.csv`, applies a custom configuration for axis styling, and dynamically sizes the chart to fit the window dimensions.