I have used an enlcosed trailer for years, and can pass along that a Viper is an easy car to tie down, thanks to the built in slots in the frame rails. These use a special hook that goes into these slots, and is the same way they are tied down by Reliable when they are delivered to the dealer. Regular tie down hooks can bend these slots. You want to use these hooks, and the company listed above sells them. I use 4 ratchet straps, that hook into these "T" hooks. I was told by an old-time trailer guy that the straps should not be crossed as it raises the center of gravity. I was also told that as long as the straps go outboard from the car at a slight angle, the car should not move. I have trailered various cars thousands of miles with no trouble.
