The 2018 Porsche 718 Boxster is available as a 2-door, 2-seat convertible. Starting at $57,400, the 2018 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 2018 Porsche 718 Boxster GTS, priced at $81,900, is powered by a 2.5L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 19-mpg in the city and 25-mpg on the highway.