This interactive scatterplot explores the 1974 Motor Trend cars dataset, letting viewers choose the x, y, and size variables via dropdown menus. Selections trigger animated transitions between configurations, updating scales, axes, and point radii. Built with D3 v5, the visualization renders SVG elements and uses d3.csv for data loading, d3.axisBottom and d3.axisLeft for axes, plus d3.scaleLinear and d3.scaleSqrt for positioning and sizing.