This interactive scatter plot visualizes BMW sales volume across countries and models from 2010 to 2024. Each bubble represents a country-model combination, with x-position mapping to year, y-position to sales volume, bubble size encoding sales magnitude, and color indicating the BMW model type. The visualization includes country filter checkboxes that update the chart in real-time, and hovering over a bubble displays a tooltip with detailed information. Built with D3.js v7, the plot uses SVG rendering with d3.csv for data loading, d3.scaleLinear for axes, d3.scaleSqrt for bubble sizing, d3.axisLeft for grid lines, and interactive checkbox filtering.