I'd like to start out by saying that I am not currently a Chevy Sonic owner, but it is on my short list for one of the vehicles to replace my current 2009 Volkswagen Passat. I understand that the Sonic is quite a bit smaller than my current Passat, but before I actually go and try and test drive one of these cars I was wanting to know if there are any parents out there who have been able to put a carseat in the back seat of the Sonic. The car seat that I have is just a cheap Evenflo convertible car seat, compared to the Graco 4Ever car seat that my wife has in her Ford Edge it is very small by comparison. anyways if anyone has had experience put in a car seat in the back of a Chevy Sonic I would love to hear from you.