I'll see if i can find pics, but I have gone the plasti-dip route on a prior car and it does work. I see Pasti-Dip makes a glossy version now, which i have never used, but you would NEVER be able to get a gloss-black look like the video you posted with the regular Plasti-dip + their glossifier or pearlizer (which is what I used). With that method, the best you could get was a semi-gloss/satin look, which looked decent in a gunmetal gray color.

I still doubt even the new glossy version will look quite like the video you posted. In my case, the gunmetal color probably made this less of a factor, but i feel like a bright, shiny black, will start looking dull/dirty pretty quickly. I would be curious to hear anyone's first hand experience with the glossy version. Based on living with the non-glossy version, i would expect the gloss to fade. I had a tough time finding a method finding a product that did a good job cleaning brake dust that wouldn't also eat through the coating.

Powder coating is probably your best bet, but obviously that will cost quite a bit more!

 

The trouble to do powder coat (even though it's very nice).... probably should just sell these BMW rims and buy some other black rims.

 

Good point, probably looking at $150-$200 per wheel, right?

 

Unsure about price. I don't quite remember what i paid with a previous vehicle. They used black wet paint (not powder) on the all-gray set. After a while it started chipping due to handling (new tires, rotation/balance) and i had to touch up at many places. Didn't look good too even after touch-up. Thinking optimum might be either plasti-coat (something you can do and re-do yourself on weekends) or all new black rims (one-time expense).

 

I had mine powder coated gloss black. It looks good. I would say it was worth the $750.