This interactive scatter plot visualizes the Auto MPG dataset from the UCI Machine Learning Repository, encoding vehicle weight as point size, origin as color, and miles per gallon against horsepower on the axes. Built with the Vega-Lite API, it registers Vega, Vega-Lite, and the Vega Tooltip handler to render an SVG view. Circle marks use configurable sizing, opacity, and zero-suppressed scales, with hover tooltips displaying car names.