No need to be sorry really . I think in that way the term is a bit relative.
If you upload something with automatic AA on Pixel Joint for example, it will not be accepted.
That's because pixel joint has an annoying "pixel purity" ideal, which is ridiculous.
Anyways, I think you'd benefit greatly form general form practice. Although you're working in a cartoony style, it helps to know how things work. The car is pretty great, keep it up