Stan. The rain tray is a culprit in this problem. The actual "open" area at the sides of it underneath are the restriction. The square inches of open area is about 1 third the open area of the grill. Yes, opening the lid will solve that problem but, IMO, ruin the look of the car. Porsches with two grills have a highly modified rain tray. They knew there was a problem. I didn't get to modify the rain tray on my Speedster before I sold it but it was next on my list to modify it by making a new one that had nearly 3 time the open area and still kept the rain out. I took measutments of how much room I had to play with by using crushable bio foam with a lid that had no rain tray. This told me how much room I had to play with between my engine and the grill. Because we seem to all have different engines configurations, my lid may not have fit on other cars but I Do think that the body builders should redo the size and shape of the rain tray. We really could get along with out a rain tray out here in SoCal but I believe you guys back there really need one................Bruce