Each view is an orthographic projection that turns with the vehicle: side from the vehicle's right, front and rear cut at the axle. Hidden wheels are dashed. In front and rear views the solid ground is the section under the near axle and the dashed line is the highest terrain under the rest of the vehicle.
Red marks what the model is computing right now: contact patches, ground reaction forces, axle centre lines and anything at a limit. Loads are per tyre, springs per shock.
Physics runs at 4 kHz in a background worker. If a setting makes it too heavy for this device, the simulation slows down (shown as sim speed below 1×) instead of the page freezing.