Front wheel flaps
Nothing of significance, not below 70-80mph . I wouldn't drive this car in traffic at that speed, even with good rain tires. Moving tires cause turbulence upsetting laminar flow the covers try to limit this turbulence, but venting the fenders would work better and reduce drag in addition.
You can drive as fast as you want, where I live, when it rains it leaves a lot of standing water, and we have horrible drainage on our highways, so yes I tend to not drive too fast in the rain, plus traffic here gets so bad in the rain I doubt I could even hit the speed limit.
There is a lot of effort that goes into design and engineering of a car like this. It does not appear that those flaps are only aesthetic in nature; they perform some function. A simple explanation may be the only reason for their presence or it could be something else that we may not have thought of. We don't know.
Coming from an aviation community, I know for a fact there can be many significant factors in design and maintenance that should not be given short thrift because someone makes a snapshot decision on the importance of a procedure or part. The safe and correct way is to assume the designers know what they are doing and stick with what has been demonstrated. Disasters have occured from the omission of a seemingly insignificant step, part or substitution for expediency.
Coming from an aviation community, I know for a fact there can be many significant factors in design and maintenance that should not be given short thrift because someone makes a snapshot decision on the importance of a procedure or part. The safe and correct way is to assume the designers know what they are doing and stick with what has been demonstrated. Disasters have occured from the omission of a seemingly insignificant step, part or substitution for expediency.
There is a lot of effort that goes into design and engineeriunder ng of a car like this. It does not appear that those flaps are only aesthetic in nature; they perform some function. A simple explanation may be the only reason for their presence or it could be something else that we may not have thought of. We don't know.
Coming from an aviation community, I know for a fact there can be many significant factors in design and maintenance that should not be given short thrift because someone makes a snapshot decision on the importance of a procedure or part. The safe and correct way is to assume the designers know what they are doing and stick with what has been demonstrated. Disasters have occured from the omission of a seemingly insignificant step, part or substitution for expediency.

Coming from an aviation community, I know for a fact there can be many significant factors in design and maintenance that should not be given short thrift because someone makes a snapshot decision on the importance of a procedure or part. The safe and correct way is to assume the designers know what they are doing and stick with what has been demonstrated. Disasters have occured from the omission of a seemingly insignificant step, part or substitution for expediency.

Good comments about design folks.
BTW what aircraft is in your profile?









