REAL MPG:
Porsche 718 Cayman (2016 on)
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000011
23–40
Real MPG
33.6
Average
Brilliant to drive. Feels more special than mainstream alternatives.
Four-cylinder engines won't appeal to everyone. Not as practical or as modern inside as rivals.
Select engine for more Real MPG information:
| Engine | Official MPG | Real MPG Avg. | Real MPG % | |
| Cayman | 38.2 mpg | 34.8 mpg | 91% |  |
| Cayman GTS | 31.4 mpg | - | - | |
| Cayman GTS PDK | 33.2 mpg | - | - | |
| Cayman PDK | 35.8–40.9 mpg | 36.5 mpg | 95% | |
| Cayman S | 34.9 mpg | 23.8 mpg | 68% | |
| Cayman S PDK | 38.7 mpg | - | - | |
Our Fuel Cost Calculator shows you which will be the best choice for you.
Compare the running costs of petrol, diesel and electric cars to make the right choice for you.
Read the Honest John review...
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Porsche 718 Cayman (2016 on)
Brilliant to drive. Feels more special than mainstream alternatives.
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Rivals
| Porsche 718 Cayman (2016 on) | 33.6 | avg mpg |
| Jaguar F-Type Coupe (2014 on) | 30.5 | avg mpg |
| Audi TT RS (2016 on) | 29.0 | avg mpg |
| Ford Mustang (2015 on) | 26.1 | avg mpg |
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