After a brief highway stint in Comfort to make sure the E43 hadn't sacrificed ride comfort in the name of performance — it hasn't — I switched up to Sport mode upon reaching more interesting canyon roads. (slashgear.com)
But, but: The last Sonata Hybrid we drove traveled just 31.8 miles on each gallon of regular gas, on a 250 - mile highway stint averaging 69 MPH. (bestride.com)
In case your use involves the occasional highway stint, you could go for the Diesel automatic that is offered only in the SX + trim. (cardekho.com)