This example visualizes the relationship between fuel efficiency, horsepower, weight, and origin using data from the UCI Auto MPG dataset. Scatter plots map miles per gallon and horsepower, while point size encodes vehicle weight and color distinguishes geographic origin. The visualization is built with the Vega-Lite API, which registers Vega and Vega-Lite libraries, and uses d3.csv for data loading. Custom axis styling and tooltips enhance readability, with the view rendered as an SVG that fits the full window.