Its sad.. Tyler only lasted 6 months in the Chicco. Bought that and 3 bases and got such little use from it. Britax marathon is big enough to rest against the front seats when rear facing in th emiddle of the mdx.
Like I said.. the secondary seats are MUCH bigger. Wish I still had the TL, but I can't even begin to describe how useful having the SUV has been vs. large sedan.