An ultra-rigid chassis with strategic use of high-tensile steel provides a vault-like platform for the rear-drive powertrain configuration.

ENGADGET: Hyundai unveils HCD-14 Genesis concept: suicide doors, gesture and eye controls

Hyundai leaned on 4-cylinder engines and its own high-tensile steel to trim 128 pounds from last year's Sonata.

FORBES: Magazine Article

Hyundai plans to increase the use of high-tensile steel in its cars by up to 50% by 2015, resulting in car-body frames that are 10% lighter.

FORBES: On The Cover/Top Stories