See also:

A COMFORTABLE AND SOFT RIDE (TOO SOFT)
Behind the wheel of the new Optima it’s easy to point out several more faults – although there are certainly some positive aspects to the driving experience as well. On the down-size, the ca ...

Automatic climate control system
1. Temperature control knob 2. AUTO (automatic control) button 3. Fan speed control knob 4. Mode selection button 5. OFF button 6. Front windshield defrost button 7. Rear windshield defrost bu ...

Acceleration and Power
All Rio and Rio5 models have a 1.6-liter four-cylinder engine that makes 110 horsepower. A five-speed manual transmission is standard on the Rio sedan, and a four-speed automatic is available for ...