The Hyundai Sonata is a mid-size car

Mid-size car

A mid-size car is the North American/Australian standard for an automobile with a size equal to or greater than that of a compact...

/full-size car

Full-size car

A full-size car is a marketing term used in North America for an automobile larger than a mid-size car. In the United States, the EPA uses "large car" to denote full-size cars....

 manufactured and marketed globally by Hyundai Motor Company

Hyundai Motor Company

Hyundai Motor Company is a Korean multinational automaker based in Seoul, South Korea which, along with Kia, comprises the Hyundai Kia Automotive Group, the world's fourth largest automaker as of 2009. As of 2011, it is the world's fastest growing automaker for two years running...

. From the sixth generation onwards, it is known as the i45 in the Australian, Singaporean and New Zealand markets. The car will be known in Western Europe as the i40 (but is a 5-door hatchback as the i40).
The first Sonata was only sold in a few markets like the Korean domestic one and in Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 as the Stellar II.