Kia has been spotted testing a prototype for an updated version of its popular Telluride mid-size SUV. The three-row SUV is one of Kia’s best-selling models in the U.S., with 2021’s sales tally coming in at 93,705 units, the best result since the SUV hit the market in early 2019. With this kind of momentum, Kia is unlikely to rock the boat with…