Thanks for all the ideas, ladies.
Can you have big sister sit next to her and amuse her a bit?
She tries! Such a caring big sis. But doesn't help at this point..
J does have reflux and I suspect this is some of it bc she often spits up in the car seat. We do have another car seat actually (hand-me-down) so I may try that one and see how she does.
Unfortunately, I can't fit in the back seat with both kiddos. At the very least, I can lean into the back since DH will be driving and replug the paci or pat her...
She doesn't seem to mind the carseat hooked into the stroller as much, so my best bet may be to try to get her to drift off in the stroller and transfer her to the car. Then speed all the way there!