Since you mentioned interior, I had to respond.
The interior is the last thing I look at when I see a new car. As long as it has a comfortable seat and heat for the cold days, I could care less about all the other stuff that is in there. Out of all of the cars I have owned, only one of them has had a working A/C. I would rather take it off and let the engine put a little more power to the ground.
For example, I have a 2000 Dakota which I bought new in 1999. I have used the A/C maybe a total of 30 times over the years. I would rather roll the windows down and feel the wind passing by. I live in Georgia, so yes it does get hot in the summer. The main reason I bought the truck, was because I wanted a fairly small, cheap,
V-8,
5-speed truck that would fly when I floored it, and I was not disappointed. I got it for under $18,000.
The funny thing is that I did not even notice all of the extras in the interior until I had already bought it.
In order of importance to me:
1. Engine/Transmission
2. Exterior
3. Fuel mileage
4. Interior
Just had to put in my