I'm a super slow builder and completing a model is a huge accomplishment.
Here is one I was able to finish this year. Pretty much box stock aside from the wheel/tire package and some flocking (does flocking count or does this fall more under the "paint/finishes" category? 🤔).
Also, this was a test subject for the rust on the exhaust system using steel wool and vinegar. I will be using this technic more in the future to see what all I can accomplish with it.