This example demonstrates the minimal setup required to build a data visualization with D3 v5 in a plain HTML page, using CSS and JavaScript. It loads D3 from a CDN and renders a “Cars Report” title, though the actual chart logic is not included in the visible files. The code shows how to structure an `index.html` with a script tag for D3 and a separate `bundle.js` file, highlighting the basic modular workflow before integrating into a React environment.