Welcome, you’re going to have a lot of fun in your new ride. I’ve had my black v6 for almost a year and a half and it’s a blast to drive, although it is a pain to keep clean. Infact I got permanent water spots and the tiny hairline scratches on my car which bugs me but it still shines after a good wash. Make sure you maintain it and leave it in the garage as much as possible to minimize outside debris from getting on your car. Overall, black is IMO the sexiest color for our s550’s if you can manage to clean it often.
You got your V6 for a decent price although it seems like the prices are climbing for them. I got mine for $21k last April but the dealer where I go to is now selling them for $29k.That’s really high. It must be a California thing