Basically, once you put an order in, it's seperate from dealer stock, and you put a deposit on it. The dealer has very clear instructions that once it comes off the trailer and into the bay, they can do their fluid/PDI checks, and that's it. I want the plastic on everything when I get there, and once I arrive, I will drive it with the salesman to go and get the car filled up.
The benefits are on a new vehicle that you know everywhere it's been. I won't have to worry about shoddy wash jobs, joyriders, and other nonsense that a dealer stock car may have had to endure.
And since I detail, I will properly prep the car after taking delivery. A good clay, seal, and wax and interior protection will be in order on day one. I'm also going to be installing a few aesthetic parts once the car arrives.
The whole process will take 6-8 weeks. I'll get my VIN and the tentative build date, and go from there. There's a small chance that I may actually get to watch my car being built on the day, but I don't know for 100% sure yet.