A Porsche 911's back seats would be comfortable for perhaps a small child. But teenagers and adults would be very uncomfortable on long journeys.
The 2006 Porsche 911 has 4.4 cu.ft. of cargo capacity with all of its seats in place.
The 2010 Porsche 911 has 4.8 cu.ft. of cargo capacity with all of its seats in place.
The 2002 Porsche 911 has 4.6 cu.ft. of cargo capacity with all of its seats in place.
The 2003 Porsche 911 has 4.6 cu.ft. of cargo capacity with all of its seats in place.
The 2011 Porsche 911 has 4.8 cu.ft. of cargo capacity with all of its seats in place.
The 2004 Porsche 911 has 4.6 cu.ft. of cargo capacity with all of its seats in place.
The 2012 Porsche 911 has 4.8 cu.ft. of cargo capacity with all of its seats in place.
The 2005 Porsche 911 has 4.8 cu.ft. of cargo capacity with all of its seats in place.
The 2008 Porsche 911 has 4.4 cu.ft. of cargo capacity with all of its seats in place.
The 2009 Porsche 911 has 4.4 cu.ft. of cargo capacity with all of its seats in place.
The amount of leg room in the front seats of a Porsche 911 is 44.6 inches. The amount of legroom can vary each year.