This interactive dashboard visualizes car performance metrics, showing relationships between engine displacement, fuel economy, weight, and cylinder count across multiple chart types. Users select from bubble, scatter, bar, line, heatmap, pie, and box plot views via dropdown menu. Built with D3 v7, the visualization uses d3.csv for data loading, d3.scaleLinear, d3.scaleOrdinal, and d3.schemeCategory10 for scales and colors, with SVG-based transitions and tooltip interactions for each chart.