2005 Ford Mustang GT Deluxe 2dr Convertible (4.6L 8cyl 5M)
This car is Mustang through and through. I bought this car because it reminded me so much of my 1967 coupe. I love the retro styling, and the performance fantastic. This is not a "bells and whistles" car. If you start comparing it to other mid-sizes, it won't win many categories. That being said, this is the ultimate ride for muscle car fans, and especially for Mustang aficionados.
It's a tie between the 300HP V-8, and the convertible top.
None really. This car does what it was designed to do. They could make the ride smoother, or add some of the gadgets that you get in other mid-size cars of the same price, but those would likely be a waste. Mustang fans will buy this car. Anyone else shouldn't waste their time.