The 2020 Mazda CX-30 is available as a 4-door, 5-seat sport utility. Starting at $21,900, the 2020 Mazda CX-30 Base FWD is powered by a 2.5LL , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 33-mpg on the highway. The top of the line 2020MazdaCX-30Premium Package AWD , priced at $ 29,600 , is powered by a 2.5LL , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 25-mpg in the city and 32-mpg on the highway.