I have that same exact car seat for my dogs. Works really well. My one was skeptical of it at 1st, but now he just chills. I think he thinks he's big man now....lol. And it acually should fit in the back seat. I have those seats that fold down to get in the trunk, so I just fixed it all up good, and it sits perfectly back there. I'm hoping what they're saying about crating works because I have a Pap who gets car sick. I put him in a crate and he throws up, but outside of one he just drools a lot. But maybe since yours throws up out of a crate, maybe it will work the other way...lol.