Definitely go rear facing for as long as possible. I drive every day in a rear facing seat. At age 30 you can switch to a booster. Seriously though, to each his own. I spin those suckers around forward as soon as they don't seem like squishy babies anymore (around 1.5 years). I can't stand rear facing seats.
More on topic, on my test drive of a Model S, I didn't think there was a 3rd LATCH point. Then I researched it, found out there was one, went back out to my test drive car, and STILL COULDN'T FIND IT! It's hidden well. A little too well. They should tailor a hem on it so it's easier to find, but still stylish.