My Mustang has been a great car. It has been on many road trips and traveled 180,000 miles and I have had no problem with the car at all. I haven't taken the best care of it (mechanical wise), but it still runs great. I really don't have any major complaints about it! Definitely got my moneys worth out of it.
I love how I fit into the car. The seat is so comfortable and everything is in perfect reach. It is like the car was made just for me!
The cupholders really aren't too functional for actually holding cups while driving - cups spill out. I would make the opening to trunk larger - lots of trunk space, just hard to get stuff in the trunk. Not much room for other passengers. My car holds me and thats about it.