335i vs 335XI
I'm looking to upgrade to the F30 335 or 335XI. Leaning towards the 335XI since I would be using the XI for snowboarding trips in the winter. But 90% of the time it will be in sunny California.
I notice that the gas mileage are the same between the XI and I. But how do they perform? I will be occasionally bring the car to the track and drag strip.
Also, I'm looking at the driver assistance package. I would like to have a backup camera. Would I be require to have a navigation if I choose the assistance package?
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