Even using a rotary for polishing, a full detail still takes me 8+ hours.
I dont cut any corners
But then again I do charge more than average, generally the lowest I would go for a full detail would be $200, and once I get more high-end customers, my prices are going to get higher still. I really prefer the low volume high end detailing over the high volume wash and wax stuff.
Besides, I cannot bring myself to slap a coat of wax on a car that has not been clayed, and polished, I just cant.