An important feature to look for is if the vacuum has 2 motors or 3 motors — many of the coin operated vacuum car wash vacuum systems, manufacturers offer 2 and 3 motor options. $25 save $5 ~~~~~ carpet floor. Sanitaire Heavy Duty Commercial Vacuum Cleaner **PER UNIT A full car wash with the trunk rims and tires usually cost $40. Car wash and vacuum price . Not sure what you are looking for or don't see exactly what you need? Exterior wash only will cost you between $20 to $30. Undercarriage wash $2 ~~~~~ works exterior. Detailing your automobile would even cost you $150. Plus, you'll earn 6 flybuys. Call us we'd be happy to help!! A basic mobile car wash can go from $20 to $50. Remove dirt, grime and stains with a complete and thorough power wash from our car car specialists. “power air dry” and “free vacuum” for $6. Average cost of washing a car? It highly depends on what you want them to do with your car. 3, 4, 5, 6 only $18. Vid...