The 2018 Porsche 718 Cayman is available in multiple trims, each with its own estimated fuel economy, here are the EPA estimates for each trim:

1. Base : 21 MPG City and 28 MPG Highway
2. S : 20 MPG City and 26 MPG Highway
3. GTS : 19 MPG City and 25 MPG Highway
4. GTS Coupe : 19 MPG City and 25 MPG Highway

It is important to remember factors such as driving style, weather conditions, and the use of features such as Eco mode can impact fuel efficiency.

Here is what's new for the 2018 Porsche 718 Cayman:

• GTS
• GTS Coupe
• Leather & Suede Seats
• Adjustable Suspension
• 20 Inch Plus Wheels