What's expected manufacture date on new car seat?

melisgood

I just opened a chicco keyfit 30 carseat and the manufacture date is August 2011. So, it expires aug 2017. I was expecting a manufacture date in 2012. Does this really matter? This will be our second child and were not sure if he will be the last or if we may have one more later. What would you do? The store I bought from is a good 30 minute drive.