Get the best warranty with it you can. You do not need all that power either to have a great driving car, my 3.0i with manual transmission is a blast - automatic boxes are always a deal breaker for me. They are superbly engineered cars with flaws such as cheap plastic bits which are prone to break, Vanos seals which shrink etc. You forget about the flaws the moment you drive it.

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2003 X5 3.0i Manual