Three stars for the effort.
The track has not got these huge height differences, it is much flatter than this. Besides that (not your fault) there is no decent kart in AC. The kart you mentioned is about the only one and it is far from good. Also (it has been some years since I raced there so maybe they made a change) that chicane before the straight was not in use. If it is now, I stand corrected.
It was fun though with the Abarth Assetto Corsa ;-)
Sometimes the chicane is in use and sometimes it isn't. I have oriented oneself by the webpage and the photos.
By the way I would advise you to drive a Caterham or the KTM X-Bow.