This bar chart, built with D3 v5, visualizes the distribution of vehicle colors for cars and taxis registered in the Netherlands, using a dropdown to switch between the two categories. It shows a horizontal bar chart ranking color counts. The code loads data from the RDW Open Data API, processes the JSON, and renders the chart using D3's `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`, with an SVG output.