Complex sentence: In the hills near Portimão stands the Autódromo Internacional do Algarve (it was finished in October 2008), a race and test circuit officially recognised for the highest categories both for cars and motorcycles.
Split into simpler sentences: In the hills near Portimão stands the Autódromo Internacional do Algarve. Finished in October 2008, it is a race and test circuit officially recognised for the highest categories both for cars and motorcycles.