Kia Niro vs Nissan ARIYA: Specs Compared

Running cost over five years: at the EPA's 15,000-mile-a-year assumption the Kia Niro burns about $650 of fuel annually against $750 for the Nissan ARIYA. That $100 yearly gap compounds to roughly $500 over five years and $800 over eight — often more than the price difference between two trims of the same vehicle, and the single largest running-cost line item separating these two.

City and highway economy: the Kia Niro leads in both cycles — 126 mpg city and 102 mpg highway against 111 and 95 mpg — so its fuel-efficiency advantage holds whether you commute in traffic or cover long highway miles.

Powertrain choice: the Kia Niro is recorded with 3 distinct engine configurations (SIDI; Hybrid, SIDI; PHEV, SIDI), the Nissan ARIYA with no. Across 43 recorded Kia Niro configurations and 25 for the Nissan ARIYA, the wider the engine spread the more the real-world fuel efficiency depends on which version you actually buy, so check the specific model year and drivetrain rather than the headline number.

Drivetrain and class: the Kia Niro is offered with Front-Wheel Drive, the Nissan ARIYA with All-Wheel Drive, Front-Wheel Drive. All-wheel drive typically costs one to two mpg combined against the same vehicle in front- or rear-wheel drive, which is worth remembering when the gap between these two is small. The EPA classes them as Small Station Wagons and Small Station Wagons respectively — the class drives the interior volume, cargo space and passenger space each one is measured against.