What a build!
First and foremost, this is an incredible model. Beautifully designed, technically sophisticated, and a real challenge to build. It’s found a place of honor on my shelf. The rear headlight sections of the build, in particular are the single most complex pieces of LEGO design I’ve seen in my 20+ years of building. Their shaping is truly a marvel. I am beyond impressed by the engine it’s of Sergey. This is not a build for beginners or even intermediate builders. It’s on par, in complexity, with the Arvo Brother’s ‘Kaneda Bike’ MOC (certainly more difficult than their version of a 911) and slightly simpler than some Inthert’s more sophisticated Star Wars builds for Brick Vault. It is also far more complex than anything non-technic that LEGO sells themself. I have nothing but wonderful things to say about the interface for the app and the instructions are 8.5/10 for clarity. 8.5/10 is pretty stellar for non-OEM Lego instructions, in my book. I’ve made a handful of adaptations to the model with pieces that have become available since publishing, so there’s room for growth, but I would strongly recommend this build to veteran LEGO builders who are 911 enthusiasts.