I'm most interested in the bluetooth in the sport navi. Is this worth the added expense and difference of the base? I tend to keep cars for a long time but never go for the top of the line for $ savings.

 

You'll have to decide that for yourself.

Nevertheless...IMHO, no. You can get a nicer head unit and have it installed in a base and still save a bunch of money; there's not much integration of the head unit with the rest of the car to lose by going aftermarket. (And no even more so if you want a manual transmission.)

 

I agree with DrewE 100%...it's your decision, but for me it's not worth it. In terms of dollars and functionality you're going to be ahead with a decent aftermarket double DIN nav unit over the cost of the stock navi. It will also be far easier to replace five years down the line when something new comes out.

For me it wasn't even a question because I didn't want an automatic.