It’s oddly satisfying to watch a dirty and damaged vehicle transform into a pristine example of automotive craftsmanship. What started as a trend of barn finds and classic car restoration projects has morphed into a scale model YouTube craze. People seem to love seeing supposedly discontinued scale models in disrepair that come back like new.

YouTube channels like Restoration and Restore Machines amass millions of views and hundreds of thousands of subscribers by showing the detailed restoration process. The same happens with other things like clocks, bikes, or guns, but cars are a bit more interesting to look at.

As you can see in the video above, the Mercedes-AMG GT Coupé scale model was in pretty bad shape. Aside from the missing wheels and windows, the body looked like the result of a car crash and the paint was completely destroyed. The situation is even worse for the La Ferrari and Lamborghini Aventador models below, which are almost unidentifiable.

Also See: This Is What Nissan’s $400,000 Restoration Of An R32 Skyline GT-R Looks Like

Speaking of restoration, these guys are really good at what they do. First, they dismantle every component of the scale model, no matter how small, and clean it thoroughly with special liquids and brushes. Sometimes they even sandblast the metal body prior to the new paint job, which is expertly applied with a spray.

After cleaning, painting and polishing all parts, they replace missing or badly damaged plastic parts with new ones straight from the factory. Then they assemble the model, with the end result usually looking as good as a brand new product, if not better.

It will be argued that it would be much cheaper to replace the scale model with a brand new example. The cars shown in the videos would range from $5 to $20 as they are usually cheap toy cars and not premium models. However, the popularity of these videos shows that the fun is in it, while the millions of views and revenue generated definitely justify the time and effort that went into creating them.