This example visualizes automobile performance data from a CSV file, plotting miles per gallon against horsepower. Colored circles represent the country of origin, while circle size encodes vehicle weight, with tooltips displaying detailed attributes. The visualization is built using the Vega-Lite API, registering Vega and Vega-Lite libraries with a custom configuration for axis styling and tooltip handling. Data is loaded asynchronously via D3's `csv` function, and the chart renders responsively to fill the browser window using an SVG renderer.