So small update, Burning smell is still there no warning indicators but the cold starts are really rough like engine is misfiring. they want the car back to check it out again. So question for you all is I have an option to trade the car for a new M3 sedan manual, one of two left in the country. I have been looking or wanting this car for sometime and as you knwo this is the last opportunity to get a V8 M3 Sedan. I just don't trust the turbo technology in these cars yet. This would be going back to old school.
Plus with the release of the 2013 XM models coming this spring my car will be 4 model years old and likley take another big drop in value especially with the cosmetic changes.

Thoughts?

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2013 BMW X5 M