This example visualizes the Auto MPG dataset from the UCI Machine Learning Repository, plotting each car as a circle positioned by miles per gallon and horsepower. Color encodes origin, while point size reflects vehicle weight, with tooltips revealing model names. Built using the Vega-Lite API and D3’s `csv` loader, it renders as an SVG via the vega-tooltip handler, dynamically fitting the viewport dimensions. Custom axis and label styling come from a shared config object, and the chart updates automatically when data loads.