This example visualizes the Auto MPG dataset from the UCI Machine Learning Repository, plotting vehicle weight against horsepower. Each dot represents a car, with color encoding the region of origin, size encoding cylinder count, and a tooltip displaying the model name. The visualization is built using the Vega-Lite API, registered with Vega and Vega-Lite libraries, and rendered as an SVG via D3. Data loading relies on D3’s `csv` method, while custom axis and label styling are applied through a shared config object.