That stuff is just wax. It's a big profit center for the dealers. Look up "mop and glow" around the forum here for more. And don't buy the fabric protection either (Scotchgard at $8 a can works as well).
And check your owner's manual. Car fabrication and paint is so much better these days that one of my car manuals just recommends washing the car with water and occasionally mild soap - is doesn't even recommend waxing, much less spending $300 bucks on a "protective" coating.
Black cars are hard to keep looking clean btw. Some people like using a "California duster" between washes to keep the dirt down.
Congrats on the new ride!