2010 Town and Country 3 across?

Any ideas for 3 across the back seat in a Town and Country?

One of my sisters went to visit my other sister with her 1 year old. My sister said she tried an infant seat (not sure which one, maybe one of the evenflo's? something she picked up a couple years back that was inexpensive) and a ffing Marathon and a ffing Blvd. She said it didn't work.

We will be visiting in a few months. We were really hoping to get three kids back there.

We have 1 child who will be 1 and of course still rearfacing, most likely in that infant seat.

We have 2 children who are 2 who will be forward facing. My 2 year old will be a couple weeks shy of 3. Her 2 year old is very small.

We have 1 child who is 6. Last year we put my almost 2 year old in the Marathon in the back with the infant. The 1 year old was forward facing in a blvd in one captains chair, and my 6 year old was forward facing in the Radian (that we brought with us) in the other captains chair. My sister and I rode in the front.

We would really like to fit 3 in the rear to free up a spot for my sister's DH. I also was hoping NOT to have to bring the Radian or any seat this time. I was figuring my younger dd could use the Marathon again, and maybe pick up a turbo booster or something for the 6 year old.

Any thoughts on how to get 3 in the back? The blvd, Marathon and infant seats are what my sister owns.

I don't have a town and country to play with.

I looked at one a couple months back... The width of my van (2003 Pontiac Montana) middle row is approx 50" (3 seats) from outermost edge of Britax Marathon FF, center Graco SS, Britax Marathon FF at the front edge of the seat). I *believe* that the measurement from the edge to the edge of the rear of the T&C was 40" or 42" at the front edge of the seat. (where my Marathons are widest). There was NO way to make anything fit... even 2 boosters and one of the above seats

we decided against the van purely for that reason... 5 kids, 5 seats. and if we bought the van I would not be able to afford to get all new seats to make any different puzzle configurations...

OH and the latch location(s) were centered... not outboard like in my van... I can't remember if there was 1 or 2 latch locations but they were like you would have to put the seat 1/2 on outboard seat belt area and 1/2 on center seat belt path area.

I know my descriptions aren't great, but I hope you get what I mean LOL