I had an 04 which I put almost 100,000 km on. Sold it 10 years ago. Fabulous car, lots of fun. Mine was very reliable. Lightly modded, it dynoed at 446 rear wheel horsepower. When it left my driveway for the last time, I cried. 3 years later, I had the chance to buy it back, but instead bought a new 2012 Mustang.
However, a dead stock 18-21 Mustang GT is quicker, more comfortable, more reliable, handles better, had many more amenities and is a better buy, in my opinion. In it's day a Terminator was the be all and end all. Today, not so much.