I am not sure if this is an Engine topic, or general Sprinter chassis, so making an educated guess. Apologies in advance.
If ordering a 2014 Sprinter, they come with the four-cylinder engine standard now. Then V6 is an option. This is across the entire line from the 2500s to the DRW 3500s, so it is advisable to look for option code 6CE, which adds $910 to the price of the vehicle.
There are also some packages Mercedes put together to make ordering groups of things easier.
I would say that the 2014 Sprinter adds some very nice features this year, especially in the driver's safety arena.
Source:
http://sprinterguy.wordpress.com/201...ide-tentative/