I am in the market for an E70... coming from and e53 3.0 and e60 3.0

Im looking at getting one that's 2013 model with comfort seats, navi, panoramic sunroof, backup camera.

The motor i am looking is the 6 cylinder..

mileage under 50k..

UPDATE= BUDGET= 27K


what else should i look for? any things to know ahead of time and avoid?

thanks in advance

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2009 BMW E60 LCI 528Xi


SOLD
2002 BMW X5 3.0i E53