CO₂-emissioner: 22 af 22 versioner vurderet.
Porsche Cayman S topper Porsche Cayman-placeringen efter CO₂-emissioner med 262 g/km.
På tværs af 22 placerede versioner spænder CO₂-emissioner fra 180 g/km til 262 g/km.
| # | Version | Årgang | Karrosseri | Brændstof | CO₂-emissioner |
|---|---|---|---|---|---|
| 1 | Porsche Cayman S | 2005 | Coupé | Benzin | 262 g/km |
| 2 | Porsche Cayman S | 2005 | Coupé | Benzin | 254 g/km |
| 3 | Porsche Cayman | 2006 | Coupé | Benzin | 242 g/km |
| 4 | Porsche Cayman GT4 | 2015 | Coupé | Benzin | 238 g/km |
| 5 | Porsche Cayman S Black Edition | 2011 | Coupé | Benzin | 230 g/km |
| 6 | Porsche Cayman S | 2009 | Coupé | Benzin | 230 g/km |
| 7 | Porsche Cayman R | 2011 | Coupé | Benzin | 228 g/km |
| 8 | Porsche Cayman | 2006 | Coupé | Benzin | 227 g/km |
| 9 | Porsche Cayman | 2006 | Coupé | Benzin | 222 g/km |
| 10 | Porsche Cayman S Black Edition | 2011 | Coupé | Benzin | 221 g/km |
| 11 | Porsche Cayman | 2009 | Coupé | Benzin | 221 g/km |
| 12 | Porsche Cayman S | 2009 | Coupé | Benzin | 221 g/km |
| 13 | Porsche Cayman R | 2011 | Coupé | Benzin | 218 g/km |
| 14 | Porsche Cayman | 2009 | Coupé | Benzin | 214 g/km |
| 15 | Porsche Cayman GTS | 2014 | Coupé | Benzin | 211 g/km |
| 16 | Porsche Cayman S | 2013 | Coupé | Benzin | 206 g/km |
| 17 | Porsche Cayman Black Edition | 2016 | Coupé | Benzin | 192 g/km |
| 18 | Porsche Cayman | 2013 | Coupé | Benzin | 192 g/km |
| 19 | Porsche Cayman GTS | 2014 | Coupé | Benzin | 190 g/km |
| 20 | Porsche Cayman S | 2013 | Coupé | Benzin | 188 g/km |
| 21 | Porsche Cayman Black Edition | 2016 | Coupé | Benzin | 180 g/km |
| 22 | Porsche Cayman | 2013 | Coupé | Benzin | 180 g/km |