I experienced similar with my Niro, however, my new '23 Sportage Hybrid is averaging about 3 MPG under the mark with careful driving. Hopefully it'll improve with some miles. It's rated for 38/38/38, and I'm getting around 35, according to the computer. When I top it off, I'll see how accurate that is.
My dealer gave me $25,500 trade for my '21 with 14,700 miles, and they have it listed on their website for $29,990. Original sticker was $27,305.
Used 2021 Kia Niro from Courtesy Kia in Altoona, PA, 16602. Call (814) 942-3000 for more information.
www.courtesykiaaltoona.com
I do love the Sportage, though. It's a huge improvement over the old one. It feels very premium for the class. The turbo/hybrid combo is impressive, overall. it'll be much better for hauling things, as it has a lot of room in the back. It's silky smooth and quite, and it's hard to even hear the gas engine kick in. Even when it does, it's so smooth that I really can't even feel it. It's a big difference over the Niro. Maybe the '23 Niro will be similar.