Car and Driver reports that to Koreans cars are simply appliances and as a result their testing for road and track are inadequate.
"No Korean car will have enthusiast credibility until it can truly handle"
"Culture is against the company. Korea arrived late to the motorized age, and the automobile still serves the role of a bland appliance there. To change that, Hyundai-Kia needs infrastructure, starting with a better test track. The small circuit at its U.S. proving ground in California’s Mojave Desert is mostly flat, with no camber changes and a bunch of dull, constant-radius turns linking short straights. It produces copious tire squeal but teaches nothing about body stability over pitching pavement or behavior in fast transitions.
Even if Team Korea builds a good track, the company must know how to use it. Setting roll centers, selecting bushing durometers, and knowing how to elegantly reinforce a structure without piling on weight are industry black arts."
http://www.caranddriver.com/columns...le-more-honda-and-mazda-out-of-hyundai-column