Id rather go for a better looking, more efficient, faster, better tuned, more comfortable and luxurious, more reliable, more sporty inline 6 35i X5 over a Durango any day, no thanks.
ZF leaves the transmission tuning up to the manufacturer who chooses this transmission, and how well a transmission is programmed makes up for at least 50% of the performance and reliability that you will experience while using this unit. Dodge being the company they are, their transmission tuning falls short of the competition and especially to Mazda which has stepped their transmission tuning game up big-time, comfortably nestled under BMWs wonderful Inline 6 - ZF transmission pairing.
Point is, drive a CPO X5 35i over a Durango - both of which apparently have the same transmissions and you will grab the BMW without even blinking an eye. There is absolutely no comparison! Have you heard of Dodges horrific transmission reliability problems? This leads everyone to believe that ZF is to blame while BMW owners experience next to zero failures with the same unit...