Firebird -
The big problem with Used Car Dealership Car Cleanup is that they dont usually give you enough time to do a very good job, and that is the main reason their cars all look swirled up after the first wash that removes all the swirl and fill products they use...
Notice I didnt use the word Detail above???
Then, like most all Dealerships, they want to beat you down to the lowest number they can get you to give them for the work on their cars...
There used to be a few guys who were doing the Dealership thing around here...
If you really want to work outside and get some good contacts and nice cars to Detail, I would see if you can find the best, nicest, cleanest, biggest, German Car Repair Shop, that is really busy, and find out who is Detailing their Client's cars, when they ask for it, along with the repairs, etc...
I did that exact scenario at EastSide Bavarian, Issaquah, WA., for several years, and when I moved away, I had built it up enough to have as many BMW and Audi vehicles as I wanted to Detail, 365 days a year...
I never had to rush my work, I always had the car for at least 20 hours on a complete Detail, and made great money..
I used a huge Bay of theirs that could hold 3 vehicles, and had perfect overhead lighting, and it was perfect.. Sometimes, I used my 2-car fully equipped garage and that worked great as well..
Bodyshops -- i worked several years as a Painter, and the Painter and/or the Apprentice was in charge of cleaning up the car and getting it perfect (at this shop) for the Client...
We never had anyone hired to just do the Detail - Bodyshops as well as Dealerships are too cheap to want to do that ever...
When you get enough hours and experience, you will be able to get farther up the ladder, but just remember one thing - this is NOT an easy business...
Unless you are just doing brand new cars just off the truck, every Detail done correctly and as perfect as possible, is hard, hard, work, takes all of your attention, and you have to constantly 100% on..
Good luck with your research !
Dan F