Where are the spark plugs on a Lexus is200?

On a Lexus IS200, the spark plugs are located beneath the ignition coils, which are mounted on top of the engine's cylinder head. To access them, you typically need to remove the engine cover and the ignition coils. The spark plugs themselves are positioned in the cylinder head, with one for each cylinder. Make sure to follow proper procedures for removal and installation to avoid damage.