The 2017 Porsche 718 Boxster is available as a 2-door, 2-seat convertible. Starting at $56,000, the 2017 Porsche 718 Boxster Base is powered by a 2.0L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 28-mpg on the highway. The top of the line 2017 Porsche 718 Boxster S, priced at $68,400, is powered by a 2.5L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 20-mpg in the city and 26-mpg on the highway.