My capability to create a fiction - by drawing cars

Just now, when writing another post, I found out one fact.
I have been able to make fiction in one way.
It has been about cars.

In a childhood, I was praised for my illustrations of automobiles.
Some one asked "What is this car?" I couldn't answer. It was fictional and imaginary.
It was a car I thought was cool then.

I imagined many traits of cars I draw.
Sometimes I succeeded the entire car, and sometimes I failed and gave up with drawing some parts.
I believed that it was my original design.
I hadn't realized that how well-thought designs of cars in real world.
At that time, I didn't have any idea at all that I was creating a fiction when I was drawing a car.
It was certain that I was good at and liked drawing cars.
Whenever I was in a stressful circumstance, I couldn't help drawing cars.

Now, when I'm thinking I'm to just do, write and draw something, I noticed that one thing I'm able to do has been draw automobiles, and I also noticed that this can be one example of capability of I can somehow create a fiction.