;-)
Nice car mate,
why your bonnet is lifted at the back?
It creates more airflow under the bonnet, for better cooling.
Isn't it the opposite in fact?
Because there is higher pressure at the windshield bay.
Their is no lot of solutions for cooling under the bonnet, see hood extractor of Sierra RS cosworth, 205 T16, Astra GSI, all are placed in vincinity of the first third to the middle of the bonnet to use the depression for sucking the hot under bonnet air (air is moving fast so depression is creates)
in fact by raising the rear of the bonnet there is chance to disturb air circulation more than other things.
Just wonder why air is comming inside the car without fan on , it's just using the windshield bay air pressure.