Actually, usually my bicycle (weather permitting) these days... (and, ironically, could have done with some downforce a week ago)I don't know what you're driving
Oh, quite likely. The windscreen is quite raked though and is almost at the same angle as the bonnet.but that lift is likely caused by negative pressure as the airflow comes from the front windsreen; its probably negligable in comparison the the downforce from the windscreen.