The 2006 Hyundai Elantra is available as a 4-door, 5-seat sedan. Starting at $14,065, the 2006 Hyundai Elantra GLS (M5) Sedan is powered by a 2.0L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 27-mpg in the city and 34-mpg on the highway. The top of the line 2006 Hyundai Elantra GT w/SULEV (A4) Hatchback, priced at $16,315, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 32-mpg on the highway.