Dilemma:keep 35D or trade?

[3BEP6]

Hey, guys, I have a 2012 e70 35D with almost 100k and I went through hell with it and it finally runs great(knock on wood). So I’m thinking of either keeping it or trading it in for a 2018 N55 X5 or 2015 Range Rover Sport. Both are the same price and mileage(~30k). I know this is a BMW forum, but was hoping for someone who might have went though the same. All opinions are welcome. My problem is that I kind off lost faith in this car. Thank you!

PS Things I’ve done with X5 very recently:
-all new injectors
-new original valve cover
-new water pump
-new thermostat
-new belts
-new dampener pulley
-all new vacuum lines
-new glow plug unit
-new original starter
-new control arms
-new stabilizer bars
-new crank shaft sensor
-new camshaft sensor
-new rear main seal
-new transmission valvebody seals
-new teansmission cooler thermostat
-a lot of other new seals and gaskets
-transmission filter and fluid
-new engine mounts
-new transmission mount
-new original injector harness