He is totally fine to be around the car, and willingly jumps into the car, but once he is harnessed into the back seat, he begins to show signs of stress. We have tried holding him in the front seat, CBD, Benadryl, favorite toys/treats, putting his bed back there, using a lifted car seat etc. Our longest car ride so far has only been just under an hour, where he was able to settle for very short periods of time, so he wasn’t crying or pacing for the entire time. He didn’t cry once the whole drive or ever appear stressed, even stopping several times and getting in/out of the car. Our vet prescribed trazadone which has completely changed Winston’s car experiences. Within 15 minutes he was sleeping calmly, but not unconscious or overly sedated, he just seemed really relaxed. We also purchased Adaptil travel spray off Amazon, which I spray on to both dogs’ car seats before we start driving. I do want to say it helps mellow things out, but the trazadone definitely had the largest impact.