See also:

Vehicle identification number (VIN)
Frame number The vehicle identification number (VIN) is the number used in registering your car and in all legal matters pertaining to its ownership, etc. The number is punched on the engine c ...

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 ...

Tires and wheels
Tire care For proper maintenance, safety, and maximum fuel economy, you must always maintain recommended tire inflation pressures and stay within the load limits and weight distribution recommen ...