First of all, I designed my 3 angles separately in AI. As this was my first attempt at faux 3D, I found it easier to visualise the appearance of the car this way. I went for a simple and blocky design.

 

 

I lowered the opacity of the 3 angles when readjusting the shapes accordingly.

 

 

Overall, I learnt a heck of a lot from this great tutorial that I can apply to so many other ideas. I highly recommend completing it!

 

I appreciate any feedback/criticism/suggestions!