See also:

2011 Kia Optima Review
The previous generation Kia Optima was a vehicle struggling to keep up with the times, having emerged on the scene as a lackluster model masquerading as a value proposition, when in reality it was ...

Fuel requirements
Gasoline engine (unleaded) Your new Kia vehicle is designed to use only unleaded fuel with a minimum Octane Rating of 87 Anti-Knock Index (AKI). NOTICE NEVER USE LEADED FUEL. The use of leaded ...

Cargo
The Kia Rio only offers 11.9 cubic feet of cargo space, which is unimpressive for the class. However, if you opt for the upper trims, you’ll get 60/40 split-folding rear seats, which increase ca ...