This dashboard visualizes BMW sales data from 2010-2024 through four interactive views: an animated bubble chart showing annual sales performance, a horizontal bar chart ranking top models, a world map with scaled bubbles representing regional sales, and a dual-line chart comparing manual versus automatic transmission trends across selected regions. The visualization uses D3.js v7 with d3.csv for data loading, d3.rollups for aggregation, d3.scaleSqrt for bubble sizing, and d3.geoMercator with d3.geoPath for the map projection. SVG rendering with smooth transitions and tooltips enables exploration across all charts.