The Conclude tab:

In this tab, you give vehicle a name and description. You can also review some salient parameters of your vehicle here. It also contains an empty box for snapshot of your vehicle. To get a snapshot of your vehicle, go to the 3D view in the body design. Pressing F2 key will position the view for the snapshot. You can make adustments in the view if you like. Now press the snapshot button from the toolbar. Now you have a snapshot of your vehicle in the empty box. It should look like below.

If you see any warnings in this tab, resolve them before uploading its .VCL file on delta-cross.com otherwise your vehicle may be faulty in the game/simulator.