On every visit to my local main dealer over the last year I've been horrified by the orange peel in the paint of brand new cars. This isn't MB specific, every new car seems to be the same. It's one of those things I'd never noticed before, and now I see it everywhere. The last 2 new cars I bought were a GLK350 and a Mitsubishi Pajero and I don't remember seeing it on them? but then I wasn't looking too hard to at that time.
Other than the orange peel, any scratches, swirls, holograms etc should be sorted by the dealer at the pre delivery inspection and I would ask them to rectify them before proceeding to have a wax/sealant applied.
And to be fair to detailed and others, a good proportion of the work on new cars they've posted has been paid for by the dealer when the car has arrived to them either sub standard from the manufacturer or picked up issues in transit. At least thats how it seems.
In the context of my previous post, even if this type of orange peel paint job can be fixed I'd imagine 2500 grit wet and dry would be required followed by various grades of compound and I doubt many folk would do that to a brand new car. I certainly wouldn't, or not until the warranty had expired anyway.
My old beater w124 it gets a lick of cheapo wax every few months, and I'll probably use gtechniq on my w140, but not sure I'd want to be brandishing a rotary loaded with compound on a car worth the same as a bungalow.
It certainly helps to have a second car to practise on thats for sure. When I started working on cars myself I used to go the local scrappy and dismantle the same part on a car in there as a practise run before attempting it on my own car. Maybe they'd let me in there with a rotary for some practise!