Yeah, I'd seen that. I agree with their assessment that the factory systems are slightly lacking: they should be fully integrated into the seat belt anchors, which are designed to hold adults. I plan to address that.
My reason for wanting the system is for the ease and simplicity of installing the seat with the LATCH anchors. I spent a good 3 hours at a store testing seats with the seat belt rather than the LATCH. They all seem to want you to use the center seat with a lap belt, which is not practical in my vehicle. They all have provisions for the shoulder belts, but it is time consuming, and I wasn't sure how well the shoulder belt locks up when all flapped around the seat, with a smallish weight.
Anyway, sorry for the hijack, good luck with the vehicle trade up!
Don't do that swap for the lousy LATCH system. I have two kids 3 and 5. We had the 93 80 series also we sold it and replaced it with the Sequoia for two reasons. #1 wife didn't like the 80 ride quality and #2 we haul grandparents too the 3rd row in the 80 series with my daughter in her car seat ment her feet were sitting on grandpas shoulders when he sat in the 2nd row.
Latch system is only of any value till the kid is about 2yrs old and even then I stopped using it because its FAR FAR FAR FAR easier to get the seat strapped in tight using the seat belt through the car seat. In fact the center belt in the 80 was the easiest given you had no shoulder belt to mess with. Regarding latch its a 60lb max load thats kid and car seat! My Daugters new big jumbo kid seat no JOKE the seat weighs 25lbs!!!! Just the SEAT!!! Meaning the weight of these new seats the good ones!!! Plus your kid is going to be hitting the max LATCH weight restrictions easily with only a couple of years. Also take a install course with your local police department or the CA Highway Patrol took like 30 minutes and was well worth it.
Couple of things most mommy's don't have the weight or strength to install the seats properly! That was the first thing the CHP was very clear about! #2 and this is what I found fiddling with the latch straps and buckles with a rear facing seat tends to tear up your hands as you try to get the damn thing installed tight given you need to wedge your hands between a seat and a seat back to get to the damn straps and clips etc. Vs just running the seat belt through the seat and wrenching it down tight one strap one pull and your done! I have three vehicles two sets of seats I uninstall and install seats far far too many times!!! LATCH is a waste of time and for sure not worth making vehicle choices over. The 80 is wider and more stable than a 4runner I hand one of those too way too damn narrow and tall for highway travel. The 4dr Tacoma unless your a really short guy a rear facing kids car seat vs where you can position the drivers seat will have you chewing on the dash board and the steering wheel against your chest.
The 80 had great spacing between the rear seat and front seat no sweat with huge rear facing seats plenty of room for everyone to be happy. My every day daily family hauler is a 2010 Subaru OB the rear seat in the 2010 and newer Outbacks and Legacies are Huge! Makes for a very nice kid hauler where your not eating the dash due to spacing issues.
As for the shoulder belts in the 80 without the ratchet set up mine were that way - all car seats come with a buckle which you slip over the belts and it locks the belt in place when you set it up. Also easier than fooling with the damn LATCH thing. Who the heck even came up with the LATCH system anyway? I want to meet that guy and see what his house looks like because that system is such a joke pretty sure he did a big sales /blow job on the powers that be to get that thing pushed through.
The largest issue with car seats is the rear facing seat vs the front to back spacing you have for the front seat position. If your a big guy about 80% of the vehicles you would consider owning get tossed out the window with the rear facing kid seat crammed behind the front seats in many cases you won't even be able to get into the drivers seat let alone drive the car. If you need to beg borrow or steal an old beater big ol kids seat and install it facing backwards in any of the vehicles your tempted to get good chance it will eliminate pretty much every vehicle on the list except for one or two ;-)
As for the straps from the head restraint location rear facing they have a webbing loop you pass under the front seat slide bracket and clip to it, no big deal. For the forward facing you can rig up a hook easy enough behind the seat. The only thing that is nice with the modern cars is the ratchet mode on the new shoulder harness retractable seat belts, you run the belt through the kids seat clip it in then pull the belt all the way out to trigger the ratchet then you feed all the loose belt in and then wrench on it like it were a tie down strap on your trailer, bingo your done.