This interactive choropleth map by bsarfo visualizes BMW sales volume across global regions from 2010 to 2024, using a sequential color scale from blue to red to indicate intensity. The visualization features a left panel with ranked regional sales figures, hover tooltips with glowing effects, and rotation controls for perspective changes. Built with d3.v7 and TopoJSON, it employs `d3.geoNaturalEarth1` projection, `d3.geoPath`, and keyed data joins to render country polygons. Animated hover states apply drop-shadow filters, while tooltip throttling optimizes DOM updates during interaction.