The 2011 Porsche Boxster has 24 valves.
The 2011 Porsche 911 has 24 valves.
The 2011 Porsche Cayenne has 24 valves.
The 2011 Porsche Cayman has 24 valves.
The 2011 Porsche Panamera has 24 valves.
The 2011 Porsche Boxster's engine produces 255 hp @ 6400 rpm.
The 2011 Porsche Cayman's engine produces 265 hp @ 7200 rpm.
The 2011 Porsche Cayenne's engine produces 300 hp @ 6300 rpm.
The 2011 Porsche Panamera's engine produces 300 hp @ 6200 rpm.
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The gas tank on the 2011 Porsche Cayman holds 16.9 gal..
The gas tank on the 2011 Porsche Cayenne holds 22.4 gal..