BMW Global Sales Distribution Visualization

This interactive world map visualization displays BMW sales volume across different global regions from 2010 to 2024.

Key Insights

• Market Leader: Asia dominates BMW sales with significantly higher volume than other regions
• Color Encoding: A vibrant sequential color scale represents sales volume intensity, progressing from deep blue (low sales) through cyan, green, yellow, orange, to red (high sales) for maximum visual impact
• Regional Summary: The left panel provides exact sales figures for all regions, ranked from highest to lowest
• Interactive Tooltips: Hover over any country to see detailed regional information and sales data with glowing highlight effects

Features

• Responsive choropleth map using D3.js v7
• Vibrant rainbow gradient color scheme for impressive visual impact
• Dynamic hover effects with glow shadows
• Improved legend with color intensity levels
• Enhanced styling with background gradients and shadows
• Comprehensive statistical summary panel
• Interactive highlighting on hover
• Narrative caption explaining key findings

Technical Implementation

• Data Join: Uses keyed joins for efficient updates
• Color Scale: Custom interpolated gradient transitioning through blue → cyan → green → yellow → orange → red
• Projection: Natural Earth projection for balanced world view
• Performance: Tooltip throttling (50ms delay) to reduce DOM updates
• Visual Effects: Drop-shadow filters on hover for enhanced interactivity

Data Source

Sales data aggregates BMW model sales across regions including Asia, Europe, North America, South America, Middle East, and Africa.