Your detailing job looks amazing. And that blue Eventuri with the CSL's, oh man, that has me salivating. It's on my list of future mods. I purchased your twin in the states a couple of months ago. 2006 IB M Roadster. I enjoy detailing, so I've been working on mine when time allows, and finally finished polishing all of the paint. It's amazing how deep the IB goes when the surface is polished and crystal clear. Congrats on a stellar detail on your car.
Do you know if they did any wet sanding? Most BMW paint jobs tends to have what we call orange peel here in the states -- a sort of dimpled look, and the only way to correct it is wet sanding. In your pictures, it appeared your paint surface was perfectly flat and mirror reflective.
Do you also happen to know what product they used to black your tires?
Great looking (and I'm sure great sounding) Z4M!
Salty
(first time posting -- long time lurker)