This 3D scatter plot visualizes relationships between engine size, fuel efficiency, and horsepower across simulated car models from 2019–2024, with color encoding vehicle type. Users can drag to rotate the Plotly chart, which is built with the `scatter3d` trace type, and button presets switch between two camera perspectives. Data loads from a CSV using D3's `d3.csv` method, and preprocessing validates required columns and numeric fields before rendering.