This example renders a scatterplot of automobile data using the Vega-Lite API, with each circle representing a car model positioned by its country of origin and horsepower. The visualization shows overlapping points with low opacity to reveal density patterns. It loads data from a CSV file using d3.csv, constructs the mark and encoding specifications through vl.markCircle and vl.encode, then renders the final SVG using Vega charting libraries bundled with Vega-Tooltip. The code demonstrates a workflow that builds a Vega-Lite specification programmatically rather than writing JSON directly, minimizing boilerplate while retaining full expressiveness.