Because it's 1/25 scale, which isn't my primary scale of choice. I do have the kit, but for kitbashing.
I also have much more accurate Tamiya versions (both the rare hardtop and more available T-top versions) as well as a couple of the US Airfix kit (original tooling unknown).
I used to own a 83 280ZX, and the Z-cars are my favorite. This Fujimi model is just one of many 280ZX model I'm planning to make. It was supposed to be a casual build, until I found out that there were so many inaccuracies that I just couldn't stand leaving it untouched, so I ended up fixing so many places.
I hope my update helps other people doing major modifications to turn a crap into a presentable model.