This is really interesting Markos. I ordered few samples from Metrorestyling last week as well.
I am not trying to match a factory color. But rather trying to match the distorted Turkis that we always see the e9 at the BMW museum in. It is a Turkis car but the white balance that most cameras create while shooting that car with the specific lights they use in the museum make it look like a color that is halfway between Turkis and Fjord.
To me, that is the appeal of this wrap system. Being able to try new colors that don't really exist in the factory color book.
BTW, I measured the hood this weekend and it looks like a 5ft wide piece will cover it without any problem. The only challenge I could see was the roof that blends seamlessly down into the A and D pillars. In order to cover that with one 5ft wide piece, you would have to "bend" the wrap down the two pillars so you can reach the natural crease at their bottom.