This visualization presents an interactive scatter plot of the Auto MPG dataset from the UCI Machine Learning Repository, showing vehicle fuel efficiency against horsepower, with color encoding for country of origin and size encoding for vehicle weight. Built using the Vega-Lite API in conjunction with D3 v5 and Vega-Tooltip, the visualization retrieves data via D3’s CSV loader and renders as a full-window SVG with customized axis styling and tooltips that display vehicle names on hover.