Seen at the Mennonite store
Most of the "English" around Christian County, KY, would say there is a "horse and buggy" in this photo. However, the Mennonites would say that this is a "horse and carriage."
Webster's Unabridged Dictionary says that a buggy is a "light vehicle with two or four wheels, with or without a top, generally with one seat, and usually drawn by one horse".
A carriage, according to Webster's, is "a four-wheeled passenger vehicle, usually horse-drawn and often private." Dictionary.com adds that a carriage is "designed for comfort and elegance."
I think that vehicles like the one pictured above have two seats. I believe that some vehicles of this design also have a small cargo space behind the back seat. That second seat must be what makes this vehicle a carriage instead of a buggy -- to the discerning.
On the internet:
Word list: Carriages, Carts and Chariots