If you have an older version of AutoCAD that is no longer supported, you should consider the PROCAD+ Products products which will save you a lot of money.
PROCAD+ products which include built-in CAD engine. So when you choose it, you get 2-in-1: CAD and your favorite PROCAD application and pay less than what you pay for a CAD system on its own!
Explore the savings you get when you choose any PROCAD+ product which include built-in CAD engine.