This fork of ICE-6 displays BMW car sales data as a multi-series chart combining bar and line representations. The teal bars show average car price per year (rotated labels display values), while a red line with dots shows average mileage per year on a secondary right axis. The code loads CSV data from a GitHub gist, processes it in React state, then renders SVG using D3 v6 scales, axes, line generator, and selection APIs, with React managing the rendering lifecycle.