What thoughts --Pros / Cons--- of a Drive - Thru Min Tunnel. I am looking to add a mint tunnel to may wash which is a 5 ss and 1 iba now. I have small lot space and have seen the Drive - Thru model on a few of the tunnel manufacturers sites. I have seen only once at a car dealer who had this type of "tunnel" that the car is driven through the wash instead of on a conveyor. Obliviously the car owner would drive through at low speed but just wondering of the concept of a true drive thru wash for convenience. The would be attended during days hours but unattended at nite, or not. I did not have chance to discuss with dealership owner about any issues he had because a tornado destroyed the dealership shortly after I left from service call and he retired to Vegas. Has anyone heard of any issues from general public using these drive thru type tunnels. I see on websites that Rental Car businesses use them in larger cities. I am in town of about 15,000 with recently remodeled EE cross town as main competitor along with a couple older SS and IBA's.