Hyundai Motor will have the world premier of the diesel version of its Grandeur model with a 2.2-liter engine at the Busan International Motor Show in May.
The new Grandeur will hit the markets in the second half of this year.
Hyundai will also display a new premium model under the project name "AG" that is bigger than the Grandeur and smaller than the Genesis while offering high fuel efficiency to better compete with imported rivals.
Hyundai is showcasing all its new models at the auto show in Busan because because the city and neighboring South Gyeongsang Province are the biggest market for imported cars outside of the Seoul metropolitan area.
The number of foreign car showrooms in the region now surpasses 50, with more than 30 concentrated in the two cities of Busan and Ulsan. The region also accounted for 22 percent of total foreign car sales last year.
In another move to challenge the growing popularity of imported cars, Hyundai opened a large showroom in Busan on Monday.