One of the program targets for the 2011 Sonata engineering team was world-class power-to-weight ratio. Power-to-weight ratio pays dividends in both performance and fuel economy.

Hyundai Sonata is rich in ultra-high-strength steel, leading to world-class body rigidity. The 2011 Hyundai Sonata is 25 percent stiffer in torsion and 19 percent stiffer in bending rigidity than its predecessor, yet it is lighter than many midsize sedans, also offering more interior room.

This focus on power-to-weight ratio pays dividends across the board. The Hyundai Sonata owes its ability to deliver both strong performance and excellent fuel economy in great part to its impressive power-to-weight efficiency.