The 2019 Chevrolet Sonic is available as a 4-door, 5-seat sedan. Starting at $15,420, the 2019 Chevrolet Sonic LS Manual Sedan is powered by a 1.4L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 27-mpg in the city and 38-mpg on the highway. The top of the line 2019ChevroletSonicPremier Auto Hatchback , priced at $ 21,520 , is powered by a 1.4L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 26-mpg in the city and 34-mpg on the highway.