The 2004 Porsche 911 has 38 in. of front head room.
The 2004 Porsche Cayenne has 39.6 in. of front head room.
The 2004 Porsche 911 has 41.6 in. of front leg room.
The 2004 Porsche Cayenne has 40.6 in. of front leg room.
The 2004 Porsche 911 has 51.7 in. of front shoulder room.
The 2004 Porsche Cayenne has 38.5 in. of rear head room.
The 2014 Porsche Cayenne has 39.6 in. of front head room.
The 2002 Porsche 911 has 38 in. of front head room.
The 2011 Porsche Panamera has 38.0 in. of front head room.
The 2007 Porsche 911 has 38.1 in. of front head room.
The 2008 Porsche 911 has 38.4 in. of front head room.
The 2013 Porsche Panamera has 38.0 in. of front head room.
The 2006 Porsche Cayenne has 39.6 in. of front head room.