okay, i rigged a simple basket. actually one of the 'shoe baskets' she likes to bury her chewies in! LOL I already had a harness and the thing that clicks into the seat belt latch.
She was trembling and panting the whole time (as become her norm since July.

) we drove to get the kids, she didn't try to jump into the back seat/floor board and *I* felt SO much better knowing if I made a sharp turn or stop she would be okay. Trembling, but not injured.... It actually is just wegded in there, it is SUPER cozy... if I can find something a few more inches longer, she might be a tad more comfy. She DID lay down at one point (still trembling, but still...) and curled up she fits pretty good...