My wife has a 2011 Town and Country which is basically the same as the GC. The pentastar 3.6 v6 engine started in 2011 and I personally like this engine much better than the 3.8/4.0 engines in the 2010 and older models. The 3.6 engine has more power and better fuel economy. With my wife's van we typically see 26-28mpg on the highway for family trips.