Which one 16 xdrive 28i or 14 xdrive 35i?

[taosx5]

Hey all, looking for opinions here. I have owned several BMW's including a couple of X5's both 03. One a 4.4 and one a 4.6is. I know how quirky they can be. I sold the 4.6is is a few months ago because it was starting to nickel and dime us. I replaced it with a Lexus 460 GX. The Lexus is ok but lacks the ultimate driving experience. Fast forward to today. The 4.4 we bought new. It has been a pretty great car if you forget about cooling reservoirs, window regulators, and door latches. It has 165K miles and still runs like a top but starting to cost a little more each year. The wife wants another BMW so we have narrowed it down to an X3. Been working with a few dealers and narrowed it down to two vehicles. One is a 2014 35i w/24K miles. It is loaded and has about every option available including the M pkg, it is also CPO with new tires, windshield, brakes pads, etc. Warranty runs out in 2019. It originally stickered for $57K and is priced at $44K. The other car is a new 2016 2.8i. It does not have a lot of options, just kind of the bare bones stuff. It stickers for $44K. I can get both cars for $42K. Which would you buy and why? Thanks in advance for any insight you can provide.