Pimping out My Ride-is It Worth It?

I got Mercury Montego 2007. It's a real nice car, reliable, big and cozy and looks good too. Also, its pretty rare and has been discontinued so it will be nice to be unique, especially later on when you will see even fewer of them. I've had it for a year and a half-bought it used, got a great deal on it, but I was thinking about changing the interior, putting different type of leather seats, a wood wheel and so on, to make it feel more luxurious. Is it worth doing that though, especially that it's not the most high end car to begin with or I should I just save money and buy a luxury car some day? (benz, caddie, etc)
I know its not worth it financially, I will never get that money back if I sell the car, but I am not gonna sell it if I start customizing it.

no, put the money into buying a new car that you like. It will not help your resale value.