[Carl Juliano]

When we first started out we had our S/Street Camaro on an open trailer. It was fine, but it wasnt a showpiece, it was a "budget racer". The biggest issue is its exposed to the elements and road debris. Once we had the Studebaker built, we went to an enclosed. If you have the room, and can afford it, I would say enclosed. Your tools and car are protected.
You also gain space in your tow vehicle, 'cause now you carry tools/equipment in the trailer.