Try the coverd crate thing.
Try putting her in the car without it moving first and see if you can settle her.

Ive heard wonderful things about the DAP collars.
We had a sample wipe which we used in the car and our pup did lay down and sleep.

Little steps and dont rush.

I would def try the collar and just settling her while stationary.Take her for a little walk first to settle her.

Mel

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