When I went to the dealer to pick up the car, I passed a Focus in the lot selling for the same price as what I paid for the Mustang. Figured I got a much better car. After 106,000 miles, I couldn't be happier. Only thing I had to replace beside wear items was a idle pulley for $11. Brake pads lasted 60K miles and did not put brake dust on the wheels. I get 21 mpg with the alcohol/gas mixture they sell in Houston. Performance tires made the car handle much better in the rain. Engine accessibility with the v6 is excellent. Parts are cheap at parts store (not dealer).
Styling, color, reliability.
Better cloth for the interior. better sound system.