they also drive at the speed where wings and aerodynamics come into play.
For street cars, aerodynamics aren't gonna do much. they're just there to add to the look. The only time I can see it having a use is if you need to fit a frount mounted intercooler, and need a special bumper to give you clearance. Or you need a custom rear bumber with a cutout for your exhaust, and then again, most of the time you won't need that.