Under the engine cover.
i have a cup so no cover on mine to hide it
it should always show when you start the car. Also if you hold the little stalk on the speedo down (the one you use to reset the trip, mpg etc) just after turning the key in the ignition it shows a little read out of oooooo-- which supposedly shows you the level of oil. all oooo's means it full up and 0------- means you are waaay to low. Although you should defo use your dipstick regularly as the digital readout is known to be unreliable.