The 2012 Hyundai Elantra is available as a 4-door, 5-seat sedan. Starting at $15,345, the 2012 Hyundai Elantra GLS (M6) US Production is powered by a 1.8L , 4 -cylinder engine mated to a manual transmission that returns an EPA estimated 28-mpg in the city and 38-mpg on the highway. The top of the line 2012HyundaiElantraLimited (Ulsan Plant) w/PZEV (A6) , priced at $ 20,595 , is powered by a 1.8L , 4 - cylinder engine that returns an EPA estimated 28-mpg in the city and 38-mpg on the highway.