>>1750216Depends. Cars and tanks and most "hardsurface" (ie. artificial, steel/concrete etc.) objects require a good grasp of perspective to draw, as well as extensive reference or a decent understanding of how they work to make them look right.
3D overdrawing is widely acknowledged to be the fastest and most efficient way of producing good and consistent hardsurface art, even among professionals. With the exception of a few extremely experienced artists, most will work 3D into their regular workflow at some point - it's just far more consistent for turnarounds and different angles. With tracing the important thing is to learn how to vary your line thickness and texturing so that it doesn't look like a plain trace - chips in the material to imply wear, dirt or soot and so on.
That being said, it's still very important to get a good understanding of traditional perspective, as doing so will help you ground your characters in the 3D space you've developed and allow you to come up with more interesting compositions without becoming overreliant on 3D mockups.
