I can only tell you from my actual experiences, not what someone "thinks" will happen.
(40) shows, Undefeated, (40) Best of Show, Outstanding Restored, 1st Place trophies, etc.
Featured in (47) pages of National car magazines to include the cover of Cars & Parts, centerfold of Car Craft, etc.
Transported on an open trailer as described above, lacquer paint, no clear coat, NO SCRATCHES.
During the show season, the guys with the big dollar enclosed car haulers did have damage to their cars. One guy had the trunk lid of his car pop open and it rubbed on the overhead rack in his enclosed trailer and ruined the paint on his trunk lid. Another guy blew a tire on his overloaded enclosed trailer and totaled the trailer and his showcar. While in Vegas for the Grand Finale, another guy left his car cover on his 50 Merc while in an enclosed trailer in 105 degree heat and the car cover stuck to his custom paint.
If you look closely at the picture of my tow rig in the snow, you will see boxes in the back of my El Camino wrapped in garbage bags. These contained all the display materials that went in my display at the indoor shows. Since I did not have an enclosed trailer to keep these items from being stolen while over nighting on the way to a show, I had to sleep in the seat of my El Camino to protect these from being stolen.
A low buck, low budget set up, but I won every show, even against entire T-Bird and Corvette Clubs competing against me in Domestic Sports.
The pic is what my Unscratched AMX looked like after (40) shows transported on an open trailer, but "covered" as described previously.