It's been posted on here when it first appeared on Youtube & I commented that I used to see the same thing happening on a daily basis when I looked out of my office window in the late 80's through to the mid 90's.
A large valeting, carphone, car alarm & audio fitting centre in Birmingham whose name escapes me now. It was on the corner of Fleet Street & Summer Row & they did it exactly like the guy, doors open, blasting the interior, but also engine compartment (with the engine running), boot / hatch & tailgate on estates. They said it was steam cleaning, but to me it looked like a pressure washer to me as they also used the same lance on the exterior. They'd then spent ages wet vac'ing the interior & load area before leaving the doors open, engine running, heaters & blowers on full and finally bringing the car inside the unit and finish drying with warm air blowers.
Remember almost all the interior back then were fabric, so I'd imagine soggy bums when the owner picked the cars up, but the guys assured me that it'd be 100% dry. I never used their valeting service, but our firm used them to fit car phones and I had them sort an alarm issue.
The cars in for a full valet were dropped off the car in the morning & picked it up when the finished work. Several colleagues who had a full valet all had high praise for them. One had his 300TE 124 estate with beige cloth seats done because his kid had been sick on the back seat and his wife ordered him to sort it or get rid as she couldn't drive the car with that smell. £90 later and his then 5 year old car had an interior that looked like the day they bought it and smelt like new too.
Even back then I thought it was a crazy thing to do.
