I recently did a model as a practice for AAA game vehicles, my goal was to try to replicate the concept as much as i could as far as the form goes, but also to add some of my own flavor texture wise.
Another thing that was important to me was to stick to industry standards with the optimization of geometry and texture space.
The original concept was done by one of my favorite concept designers Fausto de Martini. You can check his concept here:Fausto de Martini
Source: Josip’s blog