GREAT. The Escort is a fun car and great to learn about mechanics and driving. They're easy to work on, there are many parts available and they make a good little club competition car. However, it's old and won't have the modern safety features, but I would say go for it.

WITH $3000, your son shouldn't be choosy. Cast a wider net and search for the best car you can find for the money. It's better to have a car in good condition, though it might not be a cool choice. That might sound boring, but he'll get better service out of a car in tiptop shape than one that might have a better image but is run down.