If you are looking for a vector graphics program, the main players in the marketplace are Adobe Illustrator and Corel Draw.
Illustrator is the industry standard, at least in the US. Corel Draw is a great program for about 1/3 of the cost.
If you want to get started without spending any money, you can download the FREE program Inkscape - just ask Ms. Google.
It is an Open Source (sort of a Community Build by enthusiasts) project, and has been around for a long time.
Vector Graphics are scalable without any loss of quality. CAD systems are a good example of this.
Picture files like JPG's are made with dots. Vector Graphics are based on points, lines, arcs and a scaling factor.
You can create a vector drawing of a car number by tracing a picture, then scale it to anything between 1/64th size up to
Full size.
Once you understand how the concept works, it's not that hard to learn the basics. But I've been using Illustrator since about 2003, and I still learn how to do something new almost every day!
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