The 2021 Porsche 718 Boxster is available as a 2-door, 2-seat convertible. Starting at $62,000, the 2021 Porsche 718 Boxster Base is powered by a 2.0LL , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 20-mpg in the city and 26-mpg on the highway. The top of the line 2021Porsche718 BoxsterGTS 4.0 , priced at $ 88,900 , is powered by a 4.0LL , 6 - cylinder engine mated to a manual transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway.