When it comes to diecast cars, there are a few things you can do to make them look more realistic. One is to use a higher quality paint job. Another is to add decals or other markings that will help make the car look more like it was actually built by the manufacturer. Finally, you can also add a few details that will make it more realistic. For example, you might add a spoiler or other features that would give the car an air of sophistication and realism.