A 1967 Mustang Shelby GT 500?
The 1967 Shelby GT500 is undoubtedly the most desirable production Mustang in the world. A well done recreation of this car, or clone will usually cost between $50,000-$80,000. A genuine example would bring at least $200,000+.
If you want a real Shelby, you should know that 1968 and newer GT500s are significantly cheaper than 1967 models because more were made. You can also get a replica of the Gone In 60 Seconds "Eleanor" car for around $70,000.