This example visualizes six months of car manufacturer sales data as a 3D multi-series bar chart. The chart shows monthly values for each manufacturer using a three-dimensional matrix of bars rendered in X3D. It loads CSV data from a GitHub gist, parses it with `d3.csv`, and generates the scene using the `d3-x3d` library’s `barChartMultiSeries` component. The visualization relies on D3 v5 for data handling and the `d3-3d` plugin for 3D transformations within the X3DOM scene.