I have an expensive Britax-brand "convertible" car seat for my 9 month old. Its a really nice car seat - it converts from rear-facing to forward facing. I think the one I got is called the Marathon. It fits great in the Element. AFAIK its the only rear-facing brand on the market that allows you to use the LATCH system to tether to the top tethers while in the rear-facing mode, not just to the latches at the bottom.
I also used a Graco Snugride for my son until he was about 20 pounds , and it also fit really well. I'd advise you to get at least two child seats - the tiny one for when he's an infant (like a Snugride), and then a rear-facing one for the time in between the infant seat and when your child reaches 1 year and 20+ pounts, and then a forward facing one for after that. I killed two birds with one stone by getting a car seat that can do rear AND forward facing, so hopefully the only one I'll need after this is a booster.
So my path was Infant Seat -> Convertible Car Seat in Rear Facing Mode -> Convertible Car Seat in Forward Facing Mode -> Booster Seat
Some people do Infant Seat -> Rear-Facing Seat -> Forward-Facing Seat -> Booster Seat
Still others skip the Infant Seat and just get an insert for a regular rear-facing seat.
The infant car seats are great because tiny babies fit in them well, and most if not all come with a base that you LATCH into place and then you latch the car seat into the base. This means the baby can fall asleep in the car seat and you can take them out without waking them (car seat and all) - you just leave the base behind.
Last please note that there is absolutely no reason that a child's car seat needs to rest against the back of the front seat. If installed correctly a good car seat is very stable - your baby will be much safer than you are

. In fact, I'd wager that an "expert" wouldn't be happy to see a rear-facing car seat resting against a seat back - but who knows. Summary: the Element rear seat's distance from the front is not a bad thing - and I've heard its great that your kid won't be able to kick the backs of the seats later on in life

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I hope my train of thought drivel didn't confuse you too much here

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