Trim packages.
I have a sport model and it is longer than my friend's model.
The only difference between the Dodge Grand Caravan and the Dodge Grand Caravan Sport is mostly aesthetic. The side cladding on the Sport model is the same color as the body of the vehicle, the spoiler is visible, and there are other convenience items. It also has a firmer suspension than the Grand Caravan.
Trim and accessories.
It should; most Caravan/Voyager/Town & Country parts are interchangeable when it comes to the body. The only difference between Caravan/Voyager and the Grand ones is the length of the wheelbase.
No
The 2009 Dodge Grand-Caravan has 12 valves.
The 2008 Dodge Grand-Caravan has 12 valves.
The 2012 Dodge Grand-Caravan has 24 valves.
The 2007 Dodge Grand-Caravan has 12 valves.
The 2010 Dodge Grand-Caravan has 12 valves.
The 2002 Dodge Grand-Caravan has a V6 engine.
The 2004 Dodge Grand-Caravan has 12 valves.
The 2006 Dodge Grand-Caravan has 12 valves.