This $60, 000 luxury sedan is the biggest stretch yet for the Korean carmaker, which has steadily improved its reputation over the past decade.

For the first three months for 2011, its volume is up 39%, despite a lineup of only four models, and it is nipping at the heels of slumping Lexus.

In China, global auto makers are pondering not just the next model cycle in four or five years but also the shape of cars 10 to 15 years down the road.