The 2018 Kia Niro Plug-in Hybrid was introduced Thursday at the 2017 Los Angeles Auto Show , adding a considerably larger battery pack to the existing Niro Hybrid crossover With an estimated 26 miles of all-electric range, the Niro Plug-in is in the same ballpark as most other plug-in hybrid models like the Toyota Prius Prime (25 miles), Hyundai Ioniq Plug-in (29 miles) and Kia's own Optima Plug-in (29 miles). The Chevrolet Volt is the king of the castle at 53 miles.When the all-electric range is exhausted, it'll get 48 mpg city, 44 mpg highway and 46 mpg combined. That's actually a bit worse than the regular Niro (51 city/46 highway/49 combined), though that difference isn't as great it might seem given actual gas burned and the all-electric range. The estimated mile-per-gallon-equivalent rating is 105 MPGe. That's actually about the same as the Volt (106) and Optima (103), but less than the Prius Prime (133) and Ioniq (119).This is all achieved by the addition of a 8.9-kWh lithium-polymer battery pack and a 60-horsepower (44.5-kw) electric motor. This compares to the regular Niro Hybrid's 1.56-kWh battery pack and 43-hp motor.Despite its greater capacity, the battery doesn't take up any extra interior space, still fitting under the back seat and cargo area. It can be recharged in approximately 2.5 hours using a 240V charger, or in less than 9 hours using a regular household 120V outlet.Besides the powertrain, the Niro Plug-in is essentially the same beyond a few minor styling updates. There is a slightly different "grille" insert and some blue trim accents. It can also be equipped with LED headlamps.