See also:

2011 Hyundai Sonata review by G. Chambers Williams III
Among them is the newest generation of Hyundai's midsize sedan, the Sonata, now available in dealerships as an early 2011 model. The South Korean automaker introduced the new model to automotive j ...

40 MPG POWERTRAIN
Under the hood, the Hyundai Elantra is powered by an all-new 1.8-liter Nu four-cylinder engine with 148 horsepower and 131 lb-ft of torque (145 horsepower and 130 lb-ft of torque for Elantra PZEV) ...

Fuel requirements
Your new vehicle is designed to use only unleaded fuel having a pump octane number ((R+M)/2) of 87 (Research Octane Number 91) or higher. Your new vehicle is designed to obtain maximum performance ...