There are line drawings of the new car from the front side and overhead at
www.formula-3000.net/newcar2.php - from these, and the photographs which are at
www.formula-3000.net/newcar.php you should be able to get an accurate idea of how it looks.
The top of the rear wing is much lower than the top of the rollbar. The wing is held in four places - by the side plates, and two support struts in the centre.