20 to 40 bucks. Tho I also wouldnt trust teens to wash my car. But we usually pay 3 kids like 60 bucks to shovel our small driveway and side walk. Take them like 20 mins working together. And hand washing does a better job than the machines, take longer and is harder. So you should be pay 2 to 3 times what your local car wash cost. Not a choose beggar but def out of touch.