So it is really simple to do. You take a hotwheels car and drill out the rivets. Then customize to your contect. This first car is relatively simple, with just some plasticard bits for the super charger, an IG flamer pack for soem fuel tanks, SM missiles for some rockets, green stuff tarp and etched brass grating.
Work in progress shots. You can really see all the components. I also sanded it here just to give it a very abrasive quality.
Stormcast Eternal Statue Terrain piece for 40k.