Ladies and gentlemen, start your engines!
>> You know, hope is a mistake. If you can't fix what's broken, you'll, uh... you'll go insane. - Max Rockatansky
Well, it's not that bad. Painting small toy cars shouldn't be that hard. In fact, it's pretty easy and a lot of fun! In this little tutorial, I'll explain how I did it.
First off you will need a car (obviously). I get mine in the supermarket, toy shops or at the flea market (and sometimes online if I'm looking for a specific model). There are a lot of choices and different cars. I think it depends on your personal taste. I myself prefer Matchbox or Hot Wheels that are favorable and sufficient for my purposes. But I guess you can, uh... you can go insane and take a look on the fantastic models made by Johnny Lightning...
Don't forget, looking for the right car is part of the fun! The one below is the "Ice Charger" from Hot Wheels, an "ice-tuned" 1968 Dodge Charger that was used in the eighth installment of the Fast & Furious franchise. Fun fact, there are two versions of this car. Below is the 2017 version. The 2018 variant has different tires and bullet holes on the side.
Conversion. Parts that I used: wire, plastic remnants, broom bristles and some 40k bits. The Gatling is actually the gun of an Empire Engineer (Warhammer).
Priming. Usually I use a Black or a White primer, but for this model I took a Beige color first and a Yellow Ochre afterwards (both mat). The low temperatures outside have caused a few cracks in the upper layer.
Shading. Citadel Agrax Earthshade seems to be perfect for this.
Dry brushing. I used a Beige and a White...
... and added some shades afterwards. Almost there!
Now the real fun begins! For the dirt I put color on small pieces of foam and dab the paint on the models. Much like dry brushing, but with foam and dabs. I also tried to splash the paint on the cars (once) with a brush. But that's not worth the effort in my opinion (and can really cause a mess).
The rust effects were done with Citadel Ryza Rust...
... and after adding a few more details the car is finished and ready to go!
Thanks for reading! I hope this helps. Stay tuned for more!