CO₂ emissions: 22 of 22 variants rated.
Porsche Cayman S tops the Porsche Cayman ranking by CO₂ emissions, at 262 g/km.
Across 22 ranked variants, CO₂ emissions spans from 180 g/km to 262 g/km.
| # | Variant | Year | Body | Fuel | CO₂ emissions |
|---|---|---|---|---|---|
| 1 | Porsche Cayman S | 2005 | Coupe | Petrol | 262 g/km |
| 2 | Porsche Cayman S | 2005 | Coupe | Petrol | 254 g/km |
| 3 | Porsche Cayman | 2006 | Coupe | Petrol | 242 g/km |
| 4 | Porsche Cayman GT4 | 2015 | Coupe | Petrol | 238 g/km |
| 5 | Porsche Cayman S Black Edition | 2011 | Coupe | Petrol | 230 g/km |
| 6 | Porsche Cayman S | 2009 | Coupe | Petrol | 230 g/km |
| 7 | Porsche Cayman R | 2011 | Coupe | Petrol | 228 g/km |
| 8 | Porsche Cayman | 2006 | Coupe | Petrol | 227 g/km |
| 9 | Porsche Cayman | 2006 | Coupe | Petrol | 222 g/km |
| 10 | Porsche Cayman S Black Edition | 2011 | Coupe | Petrol | 221 g/km |
| 11 | Porsche Cayman | 2009 | Coupe | Petrol | 221 g/km |
| 12 | Porsche Cayman S | 2009 | Coupe | Petrol | 221 g/km |
| 13 | Porsche Cayman R | 2011 | Coupe | Petrol | 218 g/km |
| 14 | Porsche Cayman | 2009 | Coupe | Petrol | 214 g/km |
| 15 | Porsche Cayman GTS | 2014 | Coupe | Petrol | 211 g/km |
| 16 | Porsche Cayman S | 2013 | Coupe | Petrol | 206 g/km |
| 17 | Porsche Cayman Black Edition | 2016 | Coupe | Petrol | 192 g/km |
| 18 | Porsche Cayman | 2013 | Coupe | Petrol | 192 g/km |
| 19 | Porsche Cayman GTS | 2014 | Coupe | Petrol | 190 g/km |
| 20 | Porsche Cayman S | 2013 | Coupe | Petrol | 188 g/km |
| 21 | Porsche Cayman Black Edition | 2016 | Coupe | Petrol | 180 g/km |
| 22 | Porsche Cayman | 2013 | Coupe | Petrol | 180 g/km |