Moving up, the HTK+ adds cruise control, HTX brings a panoramic sunroof and the ER-suffixed variants add alloy wheels, OTA updates and Kia Connect 2.0. The HTX+ ER is where genuine comfort features like ventilated front and rear seats, a wireless charger and an 8-speaker Harman Kardon system arrive, while Level 2 ADAS with 16 autonomous features is reserved exclusively for the X-Line ER, the only variant that gets it.
