I could not get the Nav in the pre-06 Civics. Also, the little things like lack of truck release on the key fob drove me nuts. All the "real" value of the '06 probably isn't worth the money given the numbers you have laid out. It's a little bit more quiet and it's a little bit more powerful but probably not $10K worth.

For me, I like the styling of the '06 to a degree that I bought it over a used (or probably could find a new one some where) one.

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