This example visualizes the Auto MPG dataset with an interactive scatter plot, mapping miles per gallon on the x-axis and horsepower on the y-axis. Circle size encodes vehicle weight, while color distinguishes the region of origin, and hovering reveals the car name via a tooltip. The visualization is built using the Vega-Lite API, which registers Vega and Vega-Lite libraries, and loads CSV data with D3’s `csv` function. Custom styling configures dark axis labels and a large font size for readability, with the chart automatically fitting the full viewport.