Seating

The Rio can accommodate five passengers, but reviewers recommend that you limit it to four since the rear seat can be a squeeze for adults. The front seats may also be a tight fit for taller adults, who will have a difficult time finding a comfortable driving position -- especially with limited seat adjustments and no telescopic steering wheel.

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    SOLID RIDE WITH POWER TO SPARE AND EXCELLENT FUEL ECONOMY
    In terms of driving characteristics, the Optima is very much in keeping with the Hyundai Sonata, which shares the same platform. The cabin is quiet and the drive is smooth, with the Optima feeling ...

    Stop and Go available for two engines
    By the end of 2010, Kia will be offering its fuel-stretching ISG (Intelligent Stop and Go) system as an option on both the 1.7 diesel and 1.6 GDI engine. ISG automatically switches the engine off ...

    Engine coolant
    The high-pressure cooling system has a reservoir filled with year round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once ...