How might one prudently transport his pair of German shepherds, retrievers or other large dogs in his 1970 Dodge Challenger convertible with the top up or down?
The animals would need to be secured against jumping out with the top down. The interior would need to be protected from claws and dirty/sandy paws.
I have taking the dogs to the beach in mind. What are some good methods and/or equipment to protect both canine and machine from damage under way?

 

I don't have a classic but I have a pretty nice platform that holds 350 lbs. I forget the brand but there are several out there. The sides also fold up and protect the sides if you have somewhere to strap it to it. The floor space then becomes a nice place to safely store small things such as water, treats and small travel cooler. They also make restraints that plug into seat belt to restrain dog, my platform came with 1.

 

Why does putting them in the trunk come to mind?

 

No, not my dogs. They might suffocate there. However, when I was in kindergarten, a room mother brought some baby kids to school to show the children. About five kids were placed in the trunk of her Chevrolet Corvair up in front where the motor should usually be! She was local so she had not far to drive the kids home. The KIDS of course were little farm animals, GOATS! The Corvair had a deep trunk so the frisky little animals could stand up with plenty of headroom still. My grandparents had a 1961 Corvair 700 4-door, black, so I can attest to the trunk's deepness in this weird, air-cooled rear-engine automobile by General Motors.

The woman with the little goats did have a bit of trouble closing the trunk lid with all the goats inside. One or two kept trying to jump out.

 

That looks like an excellent product to protect vehicle back seats and restrain dogs. I would probably tether pooches with body harnesses instead by their collars. I wish Mopar would have made a 1970 Dodge Challenger R/T in a station wagon version for the big-pooch owner who wanted muscle car hotness and style back in 1970. There really weren't any muscle car station wagons that I can name. You might think with the California surfer crowd, an out of the box station wagon body streetable hot rod should have been a big hit if Detroit otherwise saw fit to produce them.