I just got the 3 in 1 but it was a struggle.
Snoozer Stow & Go 3 in 1 Car Seat in Black & Gray at PETCO
I like the front mesh and the built in suitcase that still has front access. I also like that it can be a travel bed. But I have a sneaky suspicion they are not going to keep making it. One vendor said they could get it right away, let me know it was now back ordered. No problem, cancel, checked another that said they had it in stock and lied. Back ordered. Changed date twice. Found one that SWORE to me they had it in their physical stock and the third time was a charm. Looks good! Will be using it for the first time in a couple of weeks and will let everyone know how it test drives. I will see if I can attach it straight to a seat belt. Thanks for the heads up on that.