if a sedan works for you, then get the 6. Its a much nicer vehicle than the CX-5.
Only reason I got the CX-5 is because I have dogs and need the hatchback.
Our dog is part of the family. My wife would consider it child abuse to put him in the cargo area. Yes, he loves to run, swim and play so he does get filthy (but so do we). We just cover the back seat with a sheet. Yes, probably safer for the dog in back, I know.
He's our little co-pilot and loves to stand with his rear legs on the rear seat, front on the center console. He uses the front seatbacks as shoulder braces for cornering. Always shows an active interest in where we're going and he thinks he has the power of mind control. That is, if he concentrates intently enough about where he really wants to go, we will go there. Sometimes it works, sometimes it doesn't but he always tries because, when it works, it was worth it. ;-) And he rides in the same place in our sedan so the dog was not a consideration in terms of sedan vs. suv. I imagine if our dog was 100 lbs. it may have been.
How many of you have a dog(s) that rides with front legs on the center console?