Carson...not the Embraer 135 or 145, (have to admit it does look a little like the 135, although (in my book) its a little more stylish!).
Not the G2TT.
Con-pilot...not the Cessna Columbus either.
And to summarize..not a Grumman, Cessna or Embraer product.
Despite the suggestions of Embraer/Cessna Colombus, this design is perhaps older than it looks...