Model not showing in game

I am creating a simple driving game. All was going well as I made the first (simple) model of a car. It worked fine untill looking at it in game and the roof did not show up. Any ideas. I ahve attached the .blend file. Thanks

Attachments

car.blend (131 KB)

Moszy, select your mesh and go into edit mode. Select all vertices of your car and press Ctrl+N to recalculate normals outside.

k ill try that ,thanks

:yes:Thanks it worked.