The 2008 Mazda RX-8 is available as a 4-door, 4-seat coupe. Starting at $31,370, the 2008 Mazda RX-8 40th Anniversary Edition (M6) is powered by a 1.3L , 0 -cylinder engine mated to a manual transmission that returns an EPA estimated 16-mpg in the city and 22-mpg on the highway. The top of the line 2008MazdaRX-840th Anniversary Edition (A6) , priced at $ 32,070 , is powered by a 1.3L , 0 - cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 23-mpg on the highway.