The wife's 1999 Acura TL is still doing fine, but she is starting to talk about what kind of car she would like to replace it with, when the time comes.
We started talking about it this weekend, and even went browse the local car lots on Sunday (when those pesky salespeople are all gone).

So, the question is: What car would make a good replacement?

Things she has to have:

• 4 doors<
• Navigation System<
• Reliable all the time<
• Better fuel mileage than the TL (19-29 mpg)<
• similar comfort of the TL (a "road car") <

It would be nice if it didn't require premium fuel, which adds to the cost of operating the TL.

Any suggestions?