"Sources say that, for marketing reasons and much to Hyundai's frustration, the ix35 will not be offered with the seven-year warranty that is standard on all Kias built at the hi-tech plant."
They may be owned by the same holding company, but they clearly operate as separate companies.
Heck if I was Kia, I'd want to keep my USP seven year warranty as well.
It's all about the twisties....