Magnolia is making progress in the car. Almost every day we have been taking short car rides to "fun" places to show Maggie that the car is a good thing. She has been seeming a bit more relaxed.
We have discovered that Maggie experiences car sickness. We have read several articles that explain this may be because she is a puppy still and if her inner ears aren't fully developed, the motion of the car can make her sick. Not feeding several hours before a car ride helped a bit. With talking with our DDR coordinator, we made the decision to try Dramamine (see this article). We carefully watched the dosage and today we had a 15 minute car ride without her getting sick. Yay! Hopefully this is something she will outgrow, but until then, we have a solution that makes her more comfortable.