so how do you lower the drag coefficient of our cars.
i know lowering it makes it better but doesn't change the aerodynamics. i have a TA is my spoiler a big factor or is it better to leave on if im gonna go fast. i am going to plug my fog light holes and fill the "dimple" in my mirrors. but thier has to be more i can do.
i saw on a show "high rev tuners" that the hondas put holes in thier rear bumpers so the air behind the car doesn't swirl as much. they put huge wings on thier CARS and it creates an area of low pressure i geuss these holes somehow regulate the pressure so thier is less drag and more speed.

anyone have any more ideas please. i need to get incredible gas milage. aerodynamics will play the biggest role in this feat im moving my friend from MD to Ma this summer

 

The quickest, most effective way to realize gains is simply to lower your car. I've got Eiback Prokit springs, for some reason they are much lower than other Prokits. Most people think I've got Sportlines as my car is about 2 1/4 inches lower than stock. This reduces my frontal area from 21 sq/ft to less than 19. Some other things you can do are

1) Remove your windshield wipers
2) Tape up the holes at the front of your hood
3) Tape up all body panel gaps
4) Lower the plastic air dam as low as you can get it to prevent any air from going under the car
5) keep the windows up
6) remove the mirrors

 

Then the car will fly ....what's remaining