"Combined rating" refers to an overall assessment or evaluation that takes into account multiple factors or aspects. It combines various ratings or scores to provide a comprehensive measure or indication of something. Full definition
In all - wheel drive form, the small SUV is rated at 25 mpg in the city and 32 mpg on the highway, for an identical combined rating of 28 mpg. (autoweek.com)
It also returns 22 mpg in the city and 28 mpg on the highway for a 25 - mpg combined rating for front - wheel - drive models. (autoguide.com)
Truth be told, if mileage is a concern when shopping for any of these three, the city / highway combined rating isn't going to sway you. (cars.com)