My previous car was an XC40, and I found the fuel consumption very disappointing. I wish I had bought a PHEV which has since been discontinued, but only after being loaned a PHEV - which despite being "uncharged" and cold got me back home at precisely half the fuel consumption (42mpg) than my journey to them at 21mpg. I could never get my MHEV to even reach 40mpg... EVER
The Sportage issue is that the MHEV and pure petrol have PPF issues, with cars getting "blocked" PPF warnings every 2-3 months, and Kia not acknowledging the issue. Fuel consumption on these variants is late 20's at best, and Kia have removed them from the range for the 2026 Facelift version