Kia Corp. said Monday it has released a revamped version of its Carnival minivan model with a suite of improved safety and convenience features along with upgraded value proposition.Kia has reinforced the steering control system of the Carnival to improve the model's lane-keeping assistance feature, and has added steering wheel grip detection sensors using capacitive technology across all trims.Additionally, convenience features such as the Kia Digital Key 2 and touch-type outside door handles are now standard in the model's Signature trim and above.A Kia official said the revamped Carnival will "continue to provide differentiated value to all customers by adding safety and convenience features that customers prefer."Source: Yonhap News Agency