Since I'm considering another European Delivery trip to get a Mercedes AMG C63S next summer I figured I might as well revise my carbon fiber iPhone wallpapers while I'm waiting. It also seems like iPhone screen sizes and parallax specs keep changing so I've revised the size based on what I found on iOS Res.
Click the images above, then right-click or drag the image to your desktop to save the files. The last image with just the carbon fiber texture is what I use for my home screen background. The logos don't look good with app icons sitting on top of them.
The images posted above are 2662 x 2662 so not quite the "max texture size" reported for iPads, but I tested it out on my 12" iPad Pro and it seems to work ok. In fact, there seems to be plenty of resolution to size and position the logos off-center if you want since the time is positioned to the top left on iPads — but you need to account for the fact that it will move when you rotate the iPad, so pick carefully.
Here are samples of what they look like on the iPhone 7 Plus and 12" iPad Pro lock screens. I made the BMW M one smaller on purpose since the resolution of the original artwork wasn't as high to keep it crisp.