CAD parts
Export a 3D part from CAD, then attach it here. Re-import a newer drawing revision to replace the same part. These surfaces change appearance; vehicle mass and handling still follow the vehicle specification.
Source size stays in metres and follows the part centre. Fitted geometry resizes with the vehicle controls. Wheel and rim imports align the CAD revolution axis with the axle. A body already in the vehicle frame (ground at zero, centred across, midway between the axles), such as an imported crash-test body, keeps its own position, and the design's shell boxes step aside for it.
Keep it yours
Save an editable design file, or export a scene to explore in Virtual. No account needed.