This example displays a 3D bar chart using D3.js and SVG, showing the frequency of car models from a tab-separated data file. The bars are drawn as three visible faces (front, top, left, or right) selected by a perspective projection function that maps 3D coordinates to 2D. Using D3 scales and axes, the chart sorts bars by distance from the center to manage overlap, and includes hover states that change bar colors. The animation and transitions update polygon paths for each bar face.